Dynamic colors

marker supports RGB, hex, and ANSI 256 — and automatically downsamples to the best color model the terminal supports.

RGB truecolor

Any of 16 million colors:

import marker from 'console-marker';

marker.rgb(255, 100, 0)('text')       // foreground
marker.bgRgb(0, 128, 255)('text')     // background

// Chain with other styles
marker.bold.rgb(255, 100, 0)('text')

Hex

Accepts #RRGGBB (the # is required):

marker.hex('#FF6400')('text')
marker.bgHex('#FF6400')('text')
marker.bold.hex('#00FF88').underline('text')

ANSI 256

The classic 256-color palette (0–255):

marker.ansi256(196)('text')    // bright red
marker.bgAnsi256(57)('text')   // purple background

Automatic downsampling

When the terminal does not support truecolor, marker automatically converts:

Terminal level	rgb/hex becomes
Level 3 (truecolor)	\x1b[38;2;R;G;Bm — full 24-bit
Level 2 (256-color)	Nearest ANSI 256 index
Level 1 (16-color)	Nearest ANSI 16 code
Level 0 (none)	Passed through unstyled

You can force a specific level for testing:

import { withLevel } from 'console-marker';

const m1 = withLevel(1);
m1.hex('#FF6400')('text')  // → ANSI 16 escape