#63191B#63191B

#63191B is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.106 H 23.5°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#63191B
RGB	rgb(99, 25, 27)
HSL	hsl(358, 60%, 24%)
HSV	hsv(358, 75%, 39%)
CMYK	cmyk(0%, 74.7%, 72.7%, 61.2%)
CIE-LAB	lab(21.68, 33.19, 18.13)
CIE-LCH	lch(21.68, 37.82, 28.64°)
OKLab	oklab(33.77% 0.0973 0.0423)
OKLCH	oklch(33.77% 0.106 23.5)
XYZ	xyz(5.6917, 3.4279, 1.3986)
Luminance	0.0343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63191B #196361

analogous

#631940 #63191B #633C19

triadic

#63191B #1B6319 #191B63

tetradic

#63191B #406319 #196361 #3C1963

square

#63191B #406319 #196361 #3C1963

split-complementary

#63191B #19633C #194063

monochromatic

#180607 #320D0E #63191B #942528 #C53236

Accessibility & contrast

On white

12.46

#63191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#63191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63191B

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63191B	#FFFFFF	#000000	##FFFFFF
##63191B	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2A1A

Deuteranopia (green-blind)

#403A19

Tritanopia (blue-blind)

#6D031B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #63191b;
/* rgb */ color: rgb(99, 25, 27);
/* oklch */ color: oklch(33.8% 0.106 23.5);

Tailwind

colors: {
  custom: {
    50: '#955b57',
    500: '#63191b',
    950: '#000000',
  },
}

SCSS

$custom: #63191b;
$custom-light: #955b57;
$custom-dark: #000000;

JSON

{
  "hex": "#63191b",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 358.378,
    "s": 59.677,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33767,
    "c": 0.10603,
    "h": 23.5
  },
  "luminance": 0.03427
}

Semantic roles & 50–950 ramp

primary

#63191B

secondary

#3F9997

accent

#E3DF45

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63191B

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

Preview Lab → · Contrast checker → · Palette generator →