#641A0D#641A0D

#641A0D is a dark, moderate red. Relative luminance 0.035; OKLCH L 33.9% C 0.109 H 32.4°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#641A0D
RGB	rgb(100, 26, 13)
HSL	hsl(9, 77%, 22%)
HSV	hsv(9, 87%, 39%)
CMYK	cmyk(0%, 74%, 87%, 60.8%)
CIE-LAB	lab(21.86, 32.48, 26.94)
CIE-LCH	lch(21.86, 42.20, 39.67°)
OKLab	oklab(33.88% 0.0917 0.0581)
OKLCH	oklch(33.88% 0.109 32.4)
XYZ	xyz(5.6982, 3.4780, 0.7520)
Luminance	0.0348 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641A0D #0D5764

analogous

#640D2B #641A0D #64460D

triadic

#641A0D #0D641A #1A0D64

tetradic

#641A0D #2B640D #0D5764 #460D64

square

#641A0D #2B640D #0D5764 #460D64

split-complementary

#641A0D #0D6446 #0D2B64

monochromatic

#1B0704 #2E0C06 #641A0D #9A2814 #D0361B

Accessibility & contrast

On white

12.39

#641A0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#641A0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641A0D

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641A0D	#FFFFFF	#000000	##FFFFFF
##641A0D	1.00	12.39	1.70	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302A0B

Deuteranopia (green-blind)

#423A09

Tritanopia (blue-blind)

#6F0118

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #641a0d;
/* rgb */ color: rgb(100, 26, 13);
/* oklch */ color: oklch(33.9% 0.109 32.4);

Tailwind

colors: {
  custom: {
    50: '#975c4d',
    500: '#641a0d',
    950: '#000000',
  },
}

SCSS

$custom: #641a0d;
$custom-light: #975c4d;
$custom-dark: #000000;

JSON

{
  "hex": "#641a0d",
  "rgb": {
    "r": 100,
    "g": 26,
    "b": 13
  },
  "hsl": {
    "h": 8.966,
    "s": 76.991,
    "l": 22.157
  },
  "oklch": {
    "l": 0.33883,
    "c": 0.10854,
    "h": 32.4
  },
  "luminance": 0.03477
}

Semantic roles & 50–950 ramp

primary

#641A0D

secondary

#2F8D9E

accent

#D7F434

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #641A0D

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

Preview Lab → · Contrast checker → · Palette generator →