#644F1B#644F1B

#644F1B is a dark, moderate orange. Relative luminance 0.084; OKLCH L 43.9% C 0.074 H 86.6°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#644F1B
RGB	rgb(100, 79, 27)
HSL	hsl(43, 57%, 25%)
HSV	hsv(43, 73%, 39%)
CMYK	cmyk(0%, 21%, 73%, 60.8%)
CIE-LAB	lab(34.76, 2.57, 32.89)
CIE-LCH	lch(34.76, 32.99, 85.53°)
OKLab	oklab(43.86% 0.0044 0.0741)
OKLCH	oklch(43.86% 0.074 86.6)
XYZ	xyz(8.2498, 8.3809, 2.2199)
Luminance	0.0838 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644F1B #1B3064

analogous

#642B1B #644F1B #54641B

triadic

#644F1B #1B644F #4F1B64

tetradic

#644F1B #1B642B #1B3064 #641B54

square

#644F1B #1B642B #1B3064 #641B54

split-complementary

#644F1B #1B5464 #2B1B64

monochromatic

#181307 #34290E #644F1B #947528 #C49B35

Accessibility & contrast

On white

7.85

#644F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#644F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #644F1B

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644F1B	#FFFFFF	#000000	##FFFFFF
##644F1B	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594E15

Deuteranopia (green-blind)

#5E541D

Tritanopia (blue-blind)

#6D4844

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #644f1b;
/* rgb */ color: rgb(100, 79, 27);
/* oklch */ color: oklch(43.9% 0.074 86.6);

Tailwind

colors: {
  custom: {
    50: '#93805a',
    500: '#644f1b',
    950: '#000000',
  },
}

SCSS

$custom: #644f1b;
$custom-light: #93805a;
$custom-dark: #000000;

JSON

{
  "hex": "#644f1b",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 27
  },
  "hsl": {
    "h": 42.74,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.43859,
    "c": 0.07421,
    "h": 86.6
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary

#644F1B

secondary

#415B99

accent

#73E147

background

#F9F7F5

surface

#F2EEE9

border

#CCC9C5

text

#0D0A04

muted

#7E7C79

Preview Lab

Preview with #644F1B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →