#64131C#64131C

#64131C is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.3% C 0.113 H 20.3°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#64131C
RGB	rgb(100, 19, 28)
HSL	hsl(353, 68%, 23%)
HSV	hsv(353, 81%, 39%)
CMYK	cmyk(0%, 81%, 72%, 60.8%)
CIE-LAB	lab(21.06, 35.97, 16.73)
CIE-LCH	lch(21.06, 39.67, 24.94°)
OKLab	oklab(33.34% 0.1062 0.0393)
OKLCH	oklch(33.34% 0.113 20.3)
XYZ	xyz(5.6986, 3.2598, 1.4275)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64131C #13645B

analogous

#641344 #64131C #643213

triadic

#64131C #1C6413 #131C64

tetradic

#64131C #446413 #13645B #321364

square

#64131C #446413 #13645B #321364

split-complementary

#64131C #136432 #134464

monochromatic

#1A0507 #31090E #64131C #971D2A #CB2739

Accessibility & contrast

On white

12.71

#64131C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#64131C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64131C

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64131C	#FFFFFF	#000000	##FFFFFF
##64131C	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)

#2B281C

Deuteranopia (green-blind)

#3F391A

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #64131c;
/* rgb */ color: rgb(100, 19, 28);
/* oklch */ color: oklch(33.3% 0.113 20.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#64131c",
  "rgb": {
    "r": 100,
    "g": 19,
    "b": 28
  },
  "hsl": {
    "h": 353.333,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33344,
    "c": 0.11321,
    "h": 20.3
  },
  "luminance": 0.03259
}

Semantic roles & 50–950 ramp

primary

#64131C

secondary

#379C90

accent

#EBD83D

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #64131C

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

Preview Lab → · Contrast checker → · Palette generator →