#631516#631516

#631516 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.111 H 25.0°. Best body text is #FFFFFF at 12.73:1 contrast (WCAG AA passes).

Color values

HEX	#631516
RGB	rgb(99, 21, 22)
HSL	hsl(359, 65%, 24%)
HSV	hsv(359, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 77.8%, 61.2%)
CIE-LAB	lab(21.01, 34.56, 20.67)
CIE-LCH	lch(21.01, 40.27, 30.88°)
OKLab	oklab(33.24% 0.1004 0.0468)
OKLCH	oklch(33.24% 0.111 25)
XYZ	xyz(5.5592, 3.2478, 1.0931)
Luminance	0.0325 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631516 #156362

analogous

#63153D #631516 #633B15

triadic

#631516 #166315 #151663

tetradic

#631516 #3D6315 #156362 #3B1563

square

#631516 #3D6315 #156362 #3B1563

split-complementary

#631516 #15633B #153D63

monochromatic

#190506 #310A0B #631516 #952021 #C82A2C

Accessibility & contrast

On white

12.73

#631516 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#631516 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631516

12.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631516	#FFFFFF	#000000	##FFFFFF
##631516	1.00	12.73	1.65	12.73
#FFFFFF	12.73	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2815

Deuteranopia (green-blind)

#3F3913

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631516;
/* rgb */ color: rgb(99, 21, 22);
/* oklch */ color: oklch(33.2% 0.111 25.0);

Tailwind

colors: {
  custom: {
    50: '#965953',
    500: '#631516',
    950: '#000000',
  },
}

SCSS

$custom: #631516;
$custom-light: #965953;
$custom-dark: #000000;

JSON

{
  "hex": "#631516",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 22
  },
  "hsl": {
    "h": 359.231,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.3324,
    "c": 0.11076,
    "h": 25
  },
  "luminance": 0.03247
}

Semantic roles & 50–950 ramp

primary

#631516

secondary

#3A9A99

accent

#E8E640

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631516

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

Preview Lab → · Contrast checker → · Palette generator →