#631C12#631C12

#631C12 is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.104 H 31.0°. Best body text is #FFFFFF at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#631C12
RGB	rgb(99, 28, 18)
HSL	hsl(7, 69%, 23%)
HSV	hsv(7, 82%, 39%)
CMYK	cmyk(0%, 71.7%, 81.8%, 61.2%)
CIE-LAB	lab(22.04, 31.39, 24.35)
CIE-LCH	lch(22.04, 39.73, 37.81°)
OKLab	oklab(34% 0.0895 0.0537)
OKLCH	oklch(34% 0.104 31)
XYZ	xyz(5.6707, 3.5277, 0.9545)
Luminance	0.0353 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C12 #125963

analogous

#631231 #631C12 #634412

triadic

#631C12 #12631C #1C1263

tetradic

#631C12 #316312 #125963 #441263

square

#631C12 #316312 #125963 #441263

split-complementary

#631C12 #126344 #123163

monochromatic

#1A0705 #2F0D09 #631C12 #972B1B #CB3925

Accessibility & contrast

On white

12.31

#631C12 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#631C12 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C12

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C12	#FFFFFF	#000000	##FFFFFF
##631C12	1.00	12.31	1.71	12.31
#FFFFFF	12.31	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B10

Deuteranopia (green-blind)

#423B0F

Tritanopia (blue-blind)

#6E061A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #631c12;
/* rgb */ color: rgb(99, 28, 18);
/* oklch */ color: oklch(34.0% 0.104 31.0);

Tailwind

colors: {
  custom: {
    50: '#965d50',
    500: '#631c12',
    950: '#000000',
  },
}

SCSS

$custom: #631c12;
$custom-light: #965d50;
$custom-dark: #000000;

JSON

{
  "hex": "#631c12",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 18
  },
  "hsl": {
    "h": 7.407,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33996,
    "c": 0.10439,
    "h": 31
  },
  "luminance": 0.03527
}

Semantic roles & 50–950 ramp

primary

#631C12

secondary

#368F9B

accent

#D6EC3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631C12

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

Preview Lab → · Contrast checker → · Palette generator →