Beer Color RGB

Convert beer color values to RGB with scientific accuracy.

A TypeScript library that maps EBC and SRM beer-color readings to colorimetrically accurate sRGB through the A.J. de Lange spectral model — Beer-Lambert transmission integrated against CIE 1931 / D65, gamma-encoded.

$npm install beer-color-rgb

Open laboratory

Preview

ebcToHex(15) → "#cc7500"

rgb(204, 117, 0)

EBC 15 · #cc7500

American Pale Ale

02 · Laboratory

Input

EBC

120406080

Light path

Closest style

Belgian Blond Ale

Also: American Pale Ale, American Wheat Beer

HEX

#df9800

RGB

223, 152, 0

SRM

5.1

Specimen

EBC 10 · 5 cm

#df9800

rgb(223, 152, 0)

03 · Spectrum

EBC 1 → 80

Berliner Weisse

EBC 4–6

Gose

EBC 6–8

Belgian Blond Ale

EBC 8–12

American IPA

EBC 12–28

American Amber Ale

EBC 20–33

Munich Dunkel

EBC 33–55

English Porter

EBC 39–59

Irish Stout

EBC 49–79

Imperial Stout

EBC 59–79

04 · Quick Start

import { ebcToHex, ebcToRgb, ebcToRgbObject, ebcToRgbArray, srmToHex, srmToRgb, srmToRgbObject, srmToRgbArray } from 'beer-color-rgb';
 
// 1. Hex string
const hex  = ebcToHex(10);   // #df9800
const sHex = srmToHex(10);   // #ba5b00
 
// 2. Functional CSS string
const css  = ebcToRgb(10);   // "rgb(223, 152, 0)"
const sCss = srmToRgb(10);   // "rgb(186, 91, 0)"
 
// 3. Raw data object
const obj  = ebcToRgbObject(10);   // { r: 223, g: 152, b: 0 }
const sObj = srmToRgbObject(10);   // { r: 186, g: 91, b: 0 }
 
// 4. RGB array
const arr  = ebcToRgbArray(10);   // [223, 152, 0]
const sArr = srmToRgbArray(10);   // [186, 91, 0]
 
// 5. Override optical path (lab standard)
const lab  = ebcToHex(10, { lightPath: 1.27 });   // #f8e1a5

05 · Technical

Features

A.J. de Lange spectral model
fitted on 99 real beers, CIE 1931 / D65
EBC & SRM
both units, same accuracy
Tailwind plugin
EBC 1–80 · SRM 1–40, README
ESM + CJS
TypeScript declarations included, tree-shakeable

References

Changelog

I drink beer, but you canbuy me a ko-fi