diff --git a/src/cli-ux/index.ts b/src/cli-ux/index.ts
index 40c2b647e..ab626f9ce 100644
--- a/src/cli-ux/index.ts
+++ b/src/cli-ux/index.ts
@@ -9,7 +9,6 @@ import * as uxPrompt from './prompt'
 import * as styled from './styled'
 import uxWait from './wait'
 import write from './write'
-
 const hyperlinker = require('hyperlinker')
 
 export class ux {
@@ -195,4 +194,5 @@ export {ExitError} from './exit'
 export {IPromptOptions} from './prompt'
 export {Table} from './styled'
 
+export {colorize} from './theme'
 export {default as write} from './write'
diff --git a/src/cli-ux/theme.ts b/src/cli-ux/theme.ts
new file mode 100644
index 000000000..443f9afd9
--- /dev/null
+++ b/src/cli-ux/theme.ts
@@ -0,0 +1,31 @@
+import chalk from 'chalk'
+import * as Color from 'color'
+
+import {STANDARD_CHALK, StandardChalk, Theme} from '../interfaces/theme'
+
+function isStandardChalk(color: any): color is StandardChalk {
+  return STANDARD_CHALK.includes(color)
+}
+
+export function colorize(color: Color | StandardChalk | undefined, text: string): string {
+  if (isStandardChalk(color)) return chalk[color](text)
+
+  return color ? chalk.hex(color.hex())(text) : text
+}
+
+export function parseTheme(untypedTheme: Record<string, string>): Theme {
+  return Object.fromEntries(
+    Object.entries(untypedTheme)
+      .map(([key, value]) => [key, getColor(value)])
+      .filter(([_, value]) => value),
+  )
+}
+
+export function getColor(color: string): Color
+export function getColor(color: StandardChalk): StandardChalk
+export function getColor(color: string | StandardChalk): Color | StandardChalk | undefined {
+  try {
+    // eslint-disable-next-line new-cap
+    return isStandardChalk(color) ? color : new Color.default(color)
+  } catch {}
+}
diff --git a/src/config/config.ts b/src/config/config.ts
index dd426ebc1..92b23ab3e 100644
--- a/src/config/config.ts
+++ b/src/config/config.ts
@@ -5,6 +5,7 @@ import {join, resolve, sep} from 'node:path'
 import {URL, fileURLToPath} from 'node:url'
 
 import {ux} from '../cli-ux'
+import {parseTheme} from '../cli-ux/theme'
 import {Command} from '../command'
 import {CLIError, error, exit, warn} from '../errors'
 import {getHelpFlagAdditions} from '../help/util'
@@ -17,7 +18,6 @@ import {OCLIF_MARKER_OWNER, Performance} from '../performance'
 import {settings} from '../settings'
 import {requireJson, safeReadJson} from '../util/fs'
 import {getHomeDir, getPlatform} from '../util/os'
-import {parseTheme} from '../util/theme'
 import {compact, isProd} from '../util/util'
 import Cache from './cache'
 import PluginLoader from './plugin-loader'
diff --git a/src/help/command.ts b/src/help/command.ts
index 8b9add9f3..4e2c5f1f6 100644
--- a/src/help/command.ts
+++ b/src/help/command.ts
@@ -1,11 +1,11 @@
 import chalk from 'chalk'
 import stripAnsi from 'strip-ansi'
 
+import {colorize} from '../cli-ux/theme'
 import {Command} from '../command'
 import * as Interfaces from '../interfaces'
 import {ensureArgObject} from '../util/ensure-arg-object'
 import {toStandardizedId} from '../util/ids'
-import {colorize} from '../util/theme'
 import {castArray, compact, sortBy} from '../util/util'
 import {DocOpts} from './docopts'
 import {HelpFormatter, HelpSection, HelpSectionRenderer} from './formatter'
diff --git a/src/help/formatter.ts b/src/help/formatter.ts
index 954740359..94f6926c6 100644
--- a/src/help/formatter.ts
+++ b/src/help/formatter.ts
@@ -5,10 +5,10 @@ import stripAnsi from 'strip-ansi'
 import widestLine from 'widest-line'
 import wrap from 'wrap-ansi'
 
+import {colorize} from '../cli-ux/theme'
 import {Command} from '../command'
 import * as Interfaces from '../interfaces'
 import {stdtermwidth} from '../screen'
-import {colorize} from '../util/theme'
 import {template} from './util'
 
 export type HelpSectionKeyValueTable = {description: string; name: string}[]
diff --git a/src/help/index.ts b/src/help/index.ts
index fa9221278..e4c66167d 100644
--- a/src/help/index.ts
+++ b/src/help/index.ts
@@ -1,6 +1,7 @@
 import {format} from 'node:util'
 import stripAnsi from 'strip-ansi'
 
+import {colorize} from '../cli-ux/theme'
 import write from '../cli-ux/write'
 import {Command} from '../command'
 import {error} from '../errors'
@@ -8,7 +9,6 @@ import * as Interfaces from '../interfaces'
 import {load} from '../module-loader'
 import {cacheDefaultValue} from '../util/cache-default-value'
 import {toConfiguredId} from '../util/ids'
-import {colorize} from '../util/theme'
 import {compact, sortBy, uniqBy} from '../util/util'
 import {CommandHelp} from './command'
 import {HelpFormatter} from './formatter'
diff --git a/src/help/root.ts b/src/help/root.ts
index 87b03ea3a..37ef88ac2 100644
--- a/src/help/root.ts
+++ b/src/help/root.ts
@@ -1,7 +1,7 @@
 import stripAnsi from 'strip-ansi'
 
+import {colorize} from '../cli-ux/theme'
 import * as Interfaces from '../interfaces'
-import {colorize} from '../util/theme'
 import {compact} from '../util/util'
 import {HelpFormatter} from './formatter'
 
diff --git a/src/interfaces/theme.ts b/src/interfaces/theme.ts
index 652f05373..b522796b9 100644
--- a/src/interfaces/theme.ts
+++ b/src/interfaces/theme.ts
@@ -40,4 +40,41 @@ export const STANDARD_CHALK = [
 
 export type StandardChalk = (typeof STANDARD_CHALK)[number]
 
-export type Theme = Record<string, Color | StandardChalk>
+export const THEME_KEYS = [
+  'alias',
+  'bin',
+  'command',
+  'commandSummary',
+  'dollarSign',
+  'flag',
+  'flagDefaultValue',
+  'flagOptions',
+  'flagRequired',
+  'flagSeparator',
+  'flagType',
+  'sectionDescription',
+  'sectionHeader',
+  'topic',
+  'version',
+] as const
+
+export type ThemeKey = (typeof THEME_KEYS)[number]
+
+export type Theme = {
+  [key: string | ThemeKey]: Color | StandardChalk | undefined
+  alias?: Color | StandardChalk
+  bin?: Color | StandardChalk
+  command?: Color | StandardChalk
+  commandSummary?: Color | StandardChalk
+  dollarSign?: Color | StandardChalk
+  flag?: Color | StandardChalk
+  flagDefaultValue?: Color | StandardChalk
+  flagOptions?: Color | StandardChalk
+  flagRequired?: Color | StandardChalk
+  flagSeparator?: Color | StandardChalk
+  flagType?: Color | StandardChalk
+  sectionDescription?: Color | StandardChalk
+  sectionHeader?: Color | StandardChalk
+  topic?: Color | StandardChalk
+  version?: Color | StandardChalk
+}
diff --git a/src/util/theme.ts b/src/util/theme.ts
deleted file mode 100644
index 219d36591..000000000
--- a/src/util/theme.ts
+++ /dev/null
@@ -1,170 +0,0 @@
-import chalk from 'chalk'
-import * as Color from 'color'
-
-import {STANDARD_CHALK, StandardChalk, Theme} from '../interfaces/theme'
-
-// eslint-disable-next-line complexity
-function standardChalk(color: StandardChalk, text: string): string {
-  switch (color) {
-    case 'red': {
-      return chalk.red(text)
-    }
-
-    case 'blue': {
-      return chalk.blue(text)
-    }
-
-    case 'yellow': {
-      return chalk.yellow(text)
-    }
-
-    case 'green': {
-      return chalk.green(text)
-    }
-
-    case 'cyan': {
-      return chalk.cyan(text)
-    }
-
-    case 'magenta': {
-      return chalk.magenta(text)
-    }
-
-    case 'white': {
-      return chalk.white(text)
-    }
-
-    case 'black': {
-      return chalk.black(text)
-    }
-
-    case 'gray': {
-      return chalk.gray(text)
-    }
-
-    case 'blackBright': {
-      return chalk.blackBright(text)
-    }
-
-    case 'redBright': {
-      return chalk.redBright(text)
-    }
-
-    case 'greenBright': {
-      return chalk.greenBright(text)
-    }
-
-    case 'yellowBright': {
-      return chalk.yellowBright(text)
-    }
-
-    case 'blueBright': {
-      return chalk.blueBright(text)
-    }
-
-    case 'magentaBright': {
-      return chalk.magentaBright(text)
-    }
-
-    case 'cyanBright': {
-      return chalk.cyanBright(text)
-    }
-
-    case 'whiteBright': {
-      return chalk.whiteBright(text)
-    }
-
-    case 'bgBlack': {
-      return chalk.bgBlack(text)
-    }
-
-    case 'bgRed': {
-      return chalk.bgRed(text)
-    }
-
-    case 'bgGreen': {
-      return chalk.bgGreen(text)
-    }
-
-    case 'bgYellow': {
-      return chalk.bgYellow(text)
-    }
-
-    case 'bgBlue': {
-      return chalk.bgBlue(text)
-    }
-
-    case 'bgMagenta': {
-      return chalk.bgMagenta(text)
-    }
-
-    case 'bgCyan': {
-      return chalk.bgCyan(text)
-    }
-
-    case 'bgWhite': {
-      return chalk.bgWhite(text)
-    }
-
-    case 'bgGray': {
-      return chalk.bgGray(text)
-    }
-
-    case 'bgBlackBright': {
-      return chalk.bgBlackBright(text)
-    }
-
-    case 'bgRedBright': {
-      return chalk.bgRedBright(text)
-    }
-
-    case 'bgGreenBright': {
-      return chalk.bgGreenBright(text)
-    }
-
-    case 'bgYellowBright': {
-      return chalk.bgYellowBright(text)
-    }
-
-    case 'bgBlueBright': {
-      return chalk.bgBlueBright(text)
-    }
-
-    case 'bgMagentaBright': {
-      return chalk.bgMagentaBright(text)
-    }
-
-    case 'bgCyanBright': {
-      return chalk.bgCyanBright(text)
-    }
-
-    case 'bgWhiteBright': {
-      return chalk.bgWhiteBright(text)
-    }
-
-    default: {
-      return chalk.gray(text)
-    }
-  }
-}
-
-function isStandardChalk(color: any): color is StandardChalk {
-  return STANDARD_CHALK.includes(color)
-}
-
-export function colorize(color: Color | StandardChalk | undefined, text: string): string {
-  if (isStandardChalk(color)) return standardChalk(color, text)
-
-  return color ? chalk.hex(color.hex())(text) : text
-}
-
-export function parseTheme(untypedTheme: Record<string, string>): Theme {
-  return Object.fromEntries(Object.entries(untypedTheme).map(([key, value]) => [key, getColor(value)]))
-}
-
-export function getColor(color: string): Color
-export function getColor(color: StandardChalk): StandardChalk
-export function getColor(color: string | StandardChalk): Color | StandardChalk {
-  // eslint-disable-next-line new-cap
-  return isStandardChalk(color) ? color : new Color.default(color)
-}
diff --git a/test/util/theme.test.ts b/test/cli-ux/theme.test.ts
similarity index 59%
rename from test/util/theme.test.ts
rename to test/cli-ux/theme.test.ts
index 3d8ad2923..c81f780f5 100644
--- a/test/util/theme.test.ts
+++ b/test/cli-ux/theme.test.ts
@@ -3,7 +3,8 @@ import chalk from 'chalk'
 
 config.truncateThreshold = 0
 
-import {colorize, getColor, parseTheme} from '../../src/util/theme'
+import {colorize, getColor, parseTheme} from '../../src/cli-ux/theme'
+import {THEME_KEYS} from '../../src/interfaces/theme'
 describe('colorize', () => {
   it('should return text with ansi characters when given hex code', () => {
     const color = getColor('#FF0000')
@@ -54,11 +55,26 @@ describe('theme parsing', () => {
 
     const theme = parseTheme(untypedTheme)
 
-    for (const key of Object.keys(theme)) {
-      expect(typeof theme[key]).to.equal('object')
-      expect(theme[key]).to.have.property('model')
-      expect(theme[key]).to.have.property('color')
-      expect(theme[key]).to.have.property('valpha')
+    for (const value of Object.values(theme)) {
+      expect(typeof value).to.equal('object')
+      expect(value).to.have.property('model')
+      expect(value).to.have.property('color')
+      expect(value).to.have.property('valpha')
+    }
+  })
+
+  it('should parse untyped theme json to theme using rgb', () => {
+    const untypedTheme = {
+      alias: 'rgb(255, 255, 255)',
+    }
+
+    const theme = parseTheme(untypedTheme)
+
+    for (const value of Object.values(theme)) {
+      expect(typeof value).to.equal('object')
+      expect(value).to.have.property('model')
+      expect(value).to.have.property('color')
+      expect(value).to.have.property('valpha')
     }
   })
 
@@ -81,9 +97,39 @@ describe('theme parsing', () => {
     }
 
     const theme = parseTheme(untypedTheme)
+    for (const value of Object.values(theme)) {
+      expect(value).to.equal('cyan')
+    }
+  })
 
-    for (const key of Object.keys(theme)) {
-      expect(theme[key]).to.equal('cyan')
+  it('should ignore unsupported values', () => {
+    const untypedTheme = {
+      alias: 'FOO',
     }
+
+    const theme = parseTheme(untypedTheme)
+    expect(theme).to.deep.equal({})
+  })
+})
+
+describe('THEME_KEYS', () => {
+  it('should always have native theme keys', () => {
+    expect(THEME_KEYS).deep.equal([
+      'alias',
+      'bin',
+      'command',
+      'commandSummary',
+      'dollarSign',
+      'flag',
+      'flagDefaultValue',
+      'flagOptions',
+      'flagRequired',
+      'flagSeparator',
+      'flagType',
+      'sectionDescription',
+      'sectionHeader',
+      'topic',
+      'version',
+    ])
   })
 })