#631716#631716

#631716 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.109 H 25.9°. Best body text is #FFFFFF at 12.62:1 contrast (WCAG AA passes).

Color values

HEX	#631716
RGB	rgb(99, 23, 22)
HSL	hsl(1, 64%, 24%)
HSV	hsv(1, 78%, 39%)
CMYK	cmyk(0%, 76.8%, 77.8%, 61.2%)
CIE-LAB	lab(21.30, 33.76, 21.00)
CIE-LCH	lch(21.30, 39.76, 31.88°)
OKLab	oklab(33.46% 0.0979 0.0475)
OKLCH	oklch(33.46% 0.109 25.9)
XYZ	xyz(5.5974, 3.3242, 1.1058)
Luminance	0.0332 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631716 #166263

analogous

#63163B #631716 #633D16

triadic

#631716 #166317 #171663

tetradic

#631716 #3B6316 #166263 #3D1663

square

#631716 #3B6316 #166263 #3D1663

split-complementary

#631716 #16633D #163B63

monochromatic

#190606 #310B0B #631716 #952321 #C72E2C

Accessibility & contrast

On white

12.62

#631716 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631716 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631716

12.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631716	#FFFFFF	#000000	##FFFFFF
##631716	1.00	12.62	1.66	12.62
#FFFFFF	12.62	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2915

Deuteranopia (green-blind)

#403913

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631716;
/* rgb */ color: rgb(99, 23, 22);
/* oklch */ color: oklch(33.5% 0.109 25.9);

Tailwind

colors: {
  custom: {
    50: '#965a53',
    500: '#631716',
    950: '#000000',
  },
}

SCSS

$custom: #631716;
$custom-light: #965a53;
$custom-dark: #000000;

JSON

{
  "hex": "#631716",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 22
  },
  "hsl": {
    "h": 0.779,
    "s": 63.636,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33455,
    "c": 0.10878,
    "h": 25.9
  },
  "luminance": 0.03323
}

Semantic roles & 50–950 ramp

primary

#631716

secondary

#3B999A

accent

#E5E741

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631716

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

Preview Lab → · Contrast checker → · Palette generator →