#631E10#631E10

#631E10 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.2% C 0.103 H 33.3°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#631E10
RGB	rgb(99, 30, 16)
HSL	hsl(10, 72%, 23%)
HSV	hsv(10, 84%, 39%)
CMYK	cmyk(0%, 69.7%, 83.8%, 61.2%)
CIE-LAB	lab(22.37, 30.36, 25.86)
CIE-LCH	lch(22.37, 39.89, 40.42°)
OKLab	oklab(34.24% 0.0859 0.0564)
OKLCH	oklch(34.24% 0.103 33.3)
XYZ	xyz(5.7040, 3.6194, 0.8884)
Luminance	0.0362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E10 #105563

analogous

#63102C #631E10 #634710

triadic

#631E10 #10631E #1E1063

tetradic

#631E10 #2C6310 #105563 #471063

square

#631E10 #2C6310 #105563 #471063

split-complementary

#631E10 #106347 #102C63

monochromatic

#1A0804 #2E0E07 #631E10 #982E19 #CC3E21

Accessibility & contrast

On white

12.18

#631E10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#631E10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E10

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E10	#FFFFFF	#000000	##FFFFFF
##631E10	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322C0E

Deuteranopia (green-blind)

#433B0D

Tritanopia (blue-blind)

#6E0A1B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #631e10;
/* rgb */ color: rgb(99, 30, 16);
/* oklch */ color: oklch(34.2% 0.103 33.3);

Tailwind

colors: {
  custom: {
    50: '#965e4f',
    500: '#631e10',
    950: '#000000',
  },
}

SCSS

$custom: #631e10;
$custom-light: #965e4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631e10",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 16
  },
  "hsl": {
    "h": 10.12,
    "s": 72.174,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34235,
    "c": 0.10275,
    "h": 33.3
  },
  "luminance": 0.03619
}

Semantic roles & 50–950 ramp

primary

#631E10

secondary

#338A9C

accent

#D0EF39

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631E10

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

Preview Lab → · Contrast checker → · Palette generator →