#631519#631519

#631519 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.3% C 0.110 H 23.0°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#631519
RGB	rgb(99, 21, 25)
HSL	hsl(357, 65%, 24%)
HSV	hsv(357, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 74.7%, 61.2%)
CIE-LAB	lab(21.06, 34.72, 18.72)
CIE-LCH	lch(21.06, 39.44, 28.34°)
OKLab	oklab(33.29% 0.1016 0.0432)
OKLCH	oklch(33.29% 0.11 23)
XYZ	xyz(5.5898, 3.2600, 1.2544)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631519 #15635F

analogous

#631540 #631519 #633815

triadic

#631519 #196315 #151963

tetradic

#631519 #406315 #15635F #381563

square

#631519 #406315 #15635F #381563

split-complementary

#631519 #156338 #154063

monochromatic

#190506 #310A0C #631519 #952026 #C82A32

Accessibility & contrast

On white

12.71

#631519 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#631519 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631519

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631519	#FFFFFF	#000000	##FFFFFF
##631519	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2818

Deuteranopia (green-blind)

#3F3916

Tritanopia (blue-blind)

#6D0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631519;
/* rgb */ color: rgb(99, 21, 25);
/* oklch */ color: oklch(33.3% 0.110 23.0);

Tailwind

colors: {
  custom: {
    50: '#965955',
    500: '#631519',
    950: '#000000',
  },
}

SCSS

$custom: #631519;
$custom-light: #965955;
$custom-dark: #000000;

JSON

{
  "hex": "#631519",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 25
  },
  "hsl": {
    "h": 356.923,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.3329,
    "c": 0.1104,
    "h": 23
  },
  "luminance": 0.03259
}

Semantic roles & 50–950 ramp

primary

#631519

secondary

#3A9A95

accent

#E8DF40

background

#F9F5F4

surface

#F2E9E8

border

#CCC5C4

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #631519

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

Preview Lab → · Contrast checker → · Palette generator →