#64131D#64131D

#64131D is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.113 H 19.6°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#64131D
RGB	rgb(100, 19, 29)
HSL	hsl(353, 68%, 23%)
HSV	hsv(353, 81%, 39%)
CMYK	cmyk(0%, 81%, 71%, 60.8%)
CIE-LAB	lab(21.07, 36.03, 16.07)
CIE-LCH	lch(21.07, 39.45, 24.03°)
OKLab	oklab(33.36% 0.1066 0.0379)
OKLCH	oklch(33.36% 0.113 19.6)
XYZ	xyz(5.7108, 3.2646, 1.4916)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64131D #13645A

analogous

#641345 #64131D #643113

triadic

#64131D #1D6413 #131D64

tetradic

#64131D #456413 #13645A #311364

square

#64131D #456413 #13645A #311364

split-complementary

#64131D #136431 #134564

monochromatic

#1A0507 #31090E #64131D #971D2C #CB273B

Accessibility & contrast

On white

12.71

#64131D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#64131D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64131D

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64131D	#FFFFFF	#000000	##FFFFFF
##64131D	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281D

Deuteranopia (green-blind)

#3F391B

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #64131d;
/* rgb */ color: rgb(100, 19, 29);
/* oklch */ color: oklch(33.4% 0.113 19.6);

Tailwind

colors: {
  custom: {
    50: '#965958',
    500: '#64131d',
    950: '#000000',
  },
}

SCSS

$custom: #64131d;
$custom-light: #965958;
$custom-dark: #000000;

JSON

{
  "hex": "#64131d",
  "rgb": {
    "r": 100,
    "g": 19,
    "b": 29
  },
  "hsl": {
    "h": 352.593,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33364,
    "c": 0.11316,
    "h": 19.6
  },
  "luminance": 0.03264
}

Semantic roles & 50–950 ramp

primary

#64131D

secondary

#379C8F

accent

#EBD53D

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #64131D

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

Preview Lab → · Contrast checker → · Palette generator →