#631911#631911

#631911 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.108 H 29.9°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#631911
RGB	rgb(99, 25, 17)
HSL	hsl(6, 71%, 23%)
HSV	hsv(6, 83%, 39%)
CMYK	cmyk(0%, 74.7%, 82.8%, 61.2%)
CIE-LAB	lab(21.54, 32.69, 24.41)
CIE-LCH	lch(21.54, 40.80, 36.75°)
OKLab	oklab(33.62% 0.0933 0.0536)
OKLCH	oklch(33.62% 0.108 29.9)
XYZ	xyz(5.5950, 3.3892, 0.8898)
Luminance	0.0339 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631911 #115B63

analogous

#631132 #631911 #634211

triadic

#631911 #116319 #191163

tetradic

#631911 #326311 #115B63 #421163

square

#631911 #326311 #115B63 #421163

split-complementary

#631911 #116342 #113263

monochromatic

#1A0704 #2F0C08 #631911 #97261A #CB3323

Accessibility & contrast

On white

12.52

#631911 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#631911 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631911

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631911	#FFFFFF	#000000	##FFFFFF
##631911	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F290F

Deuteranopia (green-blind)

#413A0E

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631911;
/* rgb */ color: rgb(99, 25, 17);
/* oklch */ color: oklch(33.6% 0.108 29.9);

Tailwind

colors: {
  custom: {
    50: '#965b4f',
    500: '#631911',
    950: '#000000',
  },
}

SCSS

$custom: #631911;
$custom-light: #965b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631911",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 17
  },
  "hsl": {
    "h": 5.854,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33615,
    "c": 0.10763,
    "h": 29.9
  },
  "luminance": 0.03388
}

Semantic roles & 50–950 ramp

primary

#631911

secondary

#34919B

accent

#DCED3A

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631911

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

Preview Lab → · Contrast checker → · Palette generator →