#631A11#631A11

#631A11 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.107 H 30.4°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#631A11
RGB	rgb(99, 26, 17)
HSL	hsl(7, 71%, 23%)
HSV	hsv(7, 83%, 39%)
CMYK	cmyk(0%, 73.7%, 82.8%, 61.2%)
CIE-LAB	lab(21.70, 32.25, 24.58)
CIE-LCH	lch(21.70, 40.55, 37.31°)
OKLab	oklab(33.74% 0.092 0.054)
OKLCH	oklch(33.74% 0.107 30.4)
XYZ	xyz(5.6168, 3.4328, 0.8970)
Luminance	0.0343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631A11 #115A63

analogous

#631131 #631A11 #634311

triadic

#631A11 #11631A #1A1163

tetradic

#631A11 #316311 #115A63 #431163

square

#631A11 #316311 #115A63 #431163

split-complementary

#631A11 #116343 #113163

monochromatic

#1A0704 #2F0C08 #631A11 #97281A #CB3523

Accessibility & contrast

On white

12.45

#631A11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631A11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631A11

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631A11	#FFFFFF	#000000	##FFFFFF
##631A11	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2A0F

Deuteranopia (green-blind)

#413A0E

Tritanopia (blue-blind)

#6E0219

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631a11;
/* rgb */ color: rgb(99, 26, 17);
/* oklch */ color: oklch(33.7% 0.107 30.4);

Tailwind

colors: {
  custom: {
    50: '#965c4f',
    500: '#631a11',
    950: '#000000',
  },
}

SCSS

$custom: #631a11;
$custom-light: #965c4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631a11",
  "rgb": {
    "r": 99,
    "g": 26,
    "b": 17
  },
  "hsl": {
    "h": 6.585,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33735,
    "c": 0.10663,
    "h": 30.4
  },
  "luminance": 0.03432
}

Semantic roles & 50–950 ramp

primary

#631A11

secondary

#34909B

accent

#DAED3A

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631A11

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

Preview Lab → · Contrast checker → · Palette generator →