#631811#631811

#631811 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.109 H 29.4°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#631811
RGB	rgb(99, 24, 17)
HSL	hsl(5, 71%, 23%)
HSV	hsv(5, 83%, 39%)
CMYK	cmyk(0%, 75.8%, 82.8%, 61.2%)
CIE-LAB	lab(21.38, 33.12, 24.24)
CIE-LCH	lch(21.38, 41.04, 36.20°)
OKLab	oklab(33.5% 0.0947 0.0533)
OKLCH	oklch(33.5% 0.109 29.4)
XYZ	xyz(5.5740, 3.3472, 0.8828)
Luminance	0.0335 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631811 #115C63

analogous

#631133 #631811 #634111

triadic

#631811 #116318 #181163

tetradic

#631811 #336311 #115C63 #411163

square

#631811 #336311 #115C63 #411163

split-complementary

#631811 #116341 #113363

monochromatic

#1A0604 #2F0B08 #631811 #97251A #CB3123

Accessibility & contrast

On white

12.58

#631811 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#631811 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631811

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631811	#FFFFFF	#000000	##FFFFFF
##631811	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E290F

Deuteranopia (green-blind)

#41390E

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631811;
/* rgb */ color: rgb(99, 24, 17);
/* oklch */ color: oklch(33.5% 0.109 29.4);

Tailwind

colors: {
  custom: {
    50: '#965b4f',
    500: '#631811',
    950: '#000000',
  },
}

SCSS

$custom: #631811;
$custom-light: #965b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631811",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 17
  },
  "hsl": {
    "h": 5.122,
    "s": 70.69,
    "l": 22.745
  },
  "oklch": {
    "l": 0.33498,
    "c": 0.10862,
    "h": 29.4
  },
  "luminance": 0.03346
}

Semantic roles & 50–950 ramp

primary

#631811

secondary

#34939B

accent

#DEED3A

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631811

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

Preview Lab → · Contrast checker → · Palette generator →