#641C17#641C17

#641C17 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.3% C 0.105 H 27.9°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#641C17
RGB	rgb(100, 28, 23)
HSL	hsl(4, 63%, 24%)
HSV	hsv(4, 77%, 39%)
CMYK	cmyk(0%, 72%, 77%, 60.8%)
CIE-LAB	lab(22.31, 32.01, 21.56)
CIE-LCH	lch(22.31, 38.59, 33.96°)
OKLab	oklab(34.26% 0.0924 0.0489)
OKLCH	oklch(34.26% 0.105 27.9)
XYZ	xyz(5.8261, 3.6025, 1.1990)
Luminance	0.0360 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641C17 #175F64

analogous

#641739 #641C17 #644317

triadic

#641C17 #17641C #1C1764

tetradic

#641C17 #396417 #175F64 #431764

square

#641C17 #396417 #175F64 #431764

split-complementary

#641C17 #176443 #173964

monochromatic

#190706 #320E0C #641C17 #962A22 #C8382E

Accessibility & contrast

On white

12.21

#641C17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#641C17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641C17

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641C17	#FFFFFF	#000000	##FFFFFF
##641C17	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B16

Deuteranopia (green-blind)

#423B15

Tritanopia (blue-blind)

#6F071B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #641c17;
/* rgb */ color: rgb(100, 28, 23);
/* oklch */ color: oklch(34.3% 0.105 27.9);

Tailwind

colors: {
  custom: {
    50: '#965d54',
    500: '#641c17',
    950: '#000000',
  },
}

SCSS

$custom: #641c17;
$custom-light: #965d54;
$custom-dark: #000000;

JSON

{
  "hex": "#641c17",
  "rgb": {
    "r": 100,
    "g": 28,
    "b": 23
  },
  "hsl": {
    "h": 3.896,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34255,
    "c": 0.10458,
    "h": 27.9
  },
  "luminance": 0.03602
}

Semantic roles & 50–950 ramp

primary

#641C17

secondary

#3C949A

accent

#DBE642

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #641C17

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

Preview Lab → · Contrast checker → · Palette generator →