#641D2B#641D2B

#641D2B is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.102 H 12.5°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#641D2B
RGB	rgb(100, 29, 43)
HSL	hsl(348, 55%, 25%)
HSV	hsv(348, 71%, 39%)
CMYK	cmyk(0%, 71%, 57%, 60.8%)
CIE-LAB	lab(22.87, 32.97, 8.78)
CIE-LCH	lch(22.87, 34.12, 14.92°)
OKLab	oklab(34.8% 0.0996 0.0222)
OKLCH	oklch(34.8% 0.102 12.5)
XYZ	xyz(6.1315, 3.7633, 2.6885)
Luminance	0.0376 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#641D2B #1D6456

analogous

#641D4E #641D2B #64321D

triadic

#641D2B #2B641D #1D2B64

tetradic

#641D2B #4E641D #1D6456 #321D64

square

#641D2B #4E641D #1D6456 #321D64

split-complementary

#641D2B #1D6432 #1D4E64

monochromatic

#18070A #350F17 #641D2B #932B3F #C33954

Accessibility & contrast

On white

11.98

#641D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#641D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #641D2B

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##641D2B	#FFFFFF	#000000	##FFFFFF
##641D2B	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2D2B

Deuteranopia (green-blind)

#403C29

Tritanopia (blue-blind)

#6E1023

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #641d2b;
/* rgb */ color: rgb(100, 29, 43);
/* oklch */ color: oklch(34.8% 0.102 12.5);

Tailwind

colors: {
  custom: {
    50: '#955e64',
    500: '#641d2b',
    950: '#000000',
  },
}

SCSS

$custom: #641d2b;
$custom-light: #955e64;
$custom-dark: #000000;

JSON

{
  "hex": "#641d2b",
  "rgb": {
    "r": 100,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 348.169,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34802,
    "c": 0.10205,
    "h": 12.5
  },
  "luminance": 0.03762
}

Semantic roles & 50–950 ramp

primary

#641D2B

secondary

#449988

accent

#DEC149

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #641D2B

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

Preview Lab → · Contrast checker → · Palette generator →