#631513#631513

#631513 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.111 H 26.8°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#631513
RGB	rgb(99, 21, 19)
HSL	hsl(2, 68%, 23%)
HSV	hsv(2, 81%, 39%)
CMYK	cmyk(0%, 78.8%, 80.8%, 61.2%)
CIE-LAB	lab(20.97, 34.42, 22.57)
CIE-LCH	lch(20.97, 41.16, 33.26°)
OKLab	oklab(33.2% 0.0992 0.0502)
OKLCH	oklch(33.2% 0.111 26.8)
XYZ	xyz(5.5319, 3.2369, 0.9495)
Luminance	0.0324 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631513 #136163

analogous

#631339 #631513 #633D13

triadic

#631513 #136315 #151363

tetradic

#631513 #396313 #136163 #3D1363

square

#631513 #396313 #136163 #3D1363

split-complementary

#631513 #13633D #133963

monochromatic

#1A0505 #300A09 #631513 #96201D #CA2B27

Accessibility & contrast

On white

12.75

#631513 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#631513 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631513

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631513	#FFFFFF	#000000	##FFFFFF
##631513	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2812

Deuteranopia (green-blind)

#403910

Tritanopia (blue-blind)

#6E0015

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631513;
/* rgb */ color: rgb(99, 21, 19);
/* oklch */ color: oklch(33.2% 0.111 26.8);

Tailwind

colors: {
  custom: {
    50: '#965951',
    500: '#631513',
    950: '#000000',
  },
}

SCSS

$custom: #631513;
$custom-light: #965951;
$custom-dark: #000000;

JSON

{
  "hex": "#631513",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 19
  },
  "hsl": {
    "h": 1.5,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33196,
    "c": 0.11118,
    "h": 26.8
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#631513

secondary

#37989B

accent

#E6EB3D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631513

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

Preview Lab → · Contrast checker → · Palette generator →