#63151F#63151F

#63151F is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.110 H 18.7°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#63151F
RGB	rgb(99, 21, 31)
HSL	hsl(352, 65%, 24%)
HSV	hsv(352, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 68.7%, 61.2%)
CIE-LAB	lab(21.16, 35.08, 14.76)
CIE-LCH	lch(21.16, 38.06, 22.82°)
OKLab	oklab(33.41% 0.1042 0.0353)
OKLCH	oklch(33.41% 0.11 18.7)
XYZ	xyz(5.6617, 3.2887, 1.6327)
Luminance	0.0329 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63151F #156359

analogous

#631546 #63151F #633215

triadic

#63151F #1F6315 #151F63

tetradic

#63151F #466315 #156359 #321563

square

#63151F #466315 #156359 #321563

split-complementary

#63151F #156332 #154663

monochromatic

#190508 #310A0F #63151F #95202F #C82A3F

Accessibility & contrast

On white

12.67

#63151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#63151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63151F

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63151F	#FFFFFF	#000000	##FFFFFF
##63151F	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281F

Deuteranopia (green-blind)

#3F391D

Tritanopia (blue-blind)

#6D0019

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63151f;
/* rgb */ color: rgb(99, 21, 31);
/* oklch */ color: oklch(33.4% 0.110 18.7);

Tailwind

colors: {
  custom: {
    50: '#955a5a',
    500: '#63151f',
    950: '#000000',
  },
}

SCSS

$custom: #63151f;
$custom-light: #955a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#63151f",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 352.308,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33405,
    "c": 0.10999,
    "h": 18.7
  },
  "luminance": 0.03288
}

Semantic roles & 50–950 ramp

primary

#63151F

secondary

#3A9A8E

accent

#E8D240

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63151F

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

Preview Lab → · Contrast checker → · Palette generator →