#64131F#64131F

#64131F is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.113 H 18.1°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#64131F
RGB	rgb(100, 19, 31)
HSL	hsl(351, 68%, 23%)
HSV	hsv(351, 81%, 39%)
CMYK	cmyk(0%, 81%, 69%, 60.8%)
CIE-LAB	lab(21.11, 36.16, 14.74)
CIE-LCH	lch(21.11, 39.04, 22.17°)
OKLab	oklab(33.41% 0.1075 0.0352)
OKLCH	oklch(33.41% 0.113 18.1)
XYZ	xyz(5.7363, 3.2749, 1.6261)
Luminance	0.0327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64131F #136458

analogous

#641347 #64131F #642F13

triadic

#64131F #1F6413 #131F64

tetradic

#64131F #476413 #136458 #2F1364

square

#64131F #476413 #136458 #2F1364

split-complementary

#64131F #13642F #134764

monochromatic

#1A0508 #31090F #64131F #971D2F #CB273F

Accessibility & contrast

On white

12.69

#64131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#64131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64131F

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64131F	#FFFFFF	#000000	##FFFFFF
##64131F	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A281F

Deuteranopia (green-blind)

#3F391D

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #64131f;
/* rgb */ color: rgb(100, 19, 31);
/* oklch */ color: oklch(33.4% 0.113 18.1);

Tailwind

colors: {
  custom: {
    50: '#96595a',
    500: '#64131f',
    950: '#000000',
  },
}

SCSS

$custom: #64131f;
$custom-light: #96595a;
$custom-dark: #000000;

JSON

{
  "hex": "#64131f",
  "rgb": {
    "r": 100,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 351.111,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33405,
    "c": 0.1131,
    "h": 18.1
  },
  "luminance": 0.03274
}

Semantic roles & 50–950 ramp

primary

#64131F

secondary

#379C8D

accent

#EBD13D

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #64131F

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

Preview Lab → · Contrast checker → · Palette generator →