#631917#631917

#631917 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.107 H 26.3°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#631917
RGB	rgb(99, 25, 23)
HSL	hsl(2, 62%, 24%)
HSV	hsv(2, 77%, 39%)
CMYK	cmyk(0%, 74.7%, 76.8%, 61.2%)
CIE-LAB	lab(21.62, 32.97, 20.71)
CIE-LCH	lch(21.62, 38.94, 32.13°)
OKLab	oklab(33.7% 0.0956 0.0471)
OKLCH	oklch(33.7% 0.107 26.3)
XYZ	xyz(5.6485, 3.4106, 1.1713)
Luminance	0.0341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631917 #176163

analogous

#63173B #631917 #633F17

triadic

#631917 #176319 #191763

tetradic

#631917 #3B6317 #176163 #3F1763

square

#631917 #3B6317 #176163 #3F1763

split-complementary

#631917 #17633F #173B63

monochromatic

#190606 #310C0B #631917 #952623 #C6322E

Accessibility & contrast

On white

12.49

#631917 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#631917 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631917

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631917	#FFFFFF	#000000	##FFFFFF
##631917	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2A16

Deuteranopia (green-blind)

#413A14

Tritanopia (blue-blind)

#6D0219

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631917;
/* rgb */ color: rgb(99, 25, 23);
/* oklch */ color: oklch(33.7% 0.107 26.3);

Tailwind

colors: {
  custom: {
    50: '#965b54',
    500: '#631917',
    950: '#000000',
  },
}

SCSS

$custom: #631917;
$custom-light: #965b54;
$custom-dark: #000000;

JSON

{
  "hex": "#631917",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 23
  },
  "hsl": {
    "h": 1.579,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33699,
    "c": 0.10658,
    "h": 26.3
  },
  "luminance": 0.0341
}

Semantic roles & 50–950 ramp

primary

#631917

secondary

#3C979A

accent

#E1E542

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0402

muted

#7E7978

Preview Lab

Preview with #631917

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

Preview Lab → · Contrast checker → · Palette generator →