#63171E#63171E

#63171E is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.108 H 20.3°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#63171E
RGB	rgb(99, 23, 30)
HSL	hsl(354, 62%, 24%)
HSV	hsv(354, 77%, 39%)
CMYK	cmyk(0%, 76.8%, 69.7%, 61.2%)
CIE-LAB	lab(21.43, 34.22, 15.78)
CIE-LCH	lch(21.43, 37.68, 24.76°)
OKLab	oklab(33.6% 0.1012 0.0375)
OKLCH	oklch(33.6% 0.108 20.3)
XYZ	xyz(5.6869, 3.3600, 1.5771)
Luminance	0.0336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63171E #17635C

analogous

#631744 #63171E #633617

triadic

#63171E #1E6317 #171E63

tetradic

#63171E #446317 #17635C #361763

square

#63171E #446317 #17635C #361763

split-complementary

#63171E #176336 #174463

monochromatic

#190608 #310B0F #63171E #95232D #C62E3C

Accessibility & contrast

On white

12.56

#63171E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#63171E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63171E

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63171E	#FFFFFF	#000000	##FFFFFF
##63171E	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C291E

Deuteranopia (green-blind)

#3F391C

Tritanopia (blue-blind)

#6D001A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63171e;
/* rgb */ color: rgb(99, 23, 30);
/* oklch */ color: oklch(33.6% 0.108 20.3);

Tailwind

colors: {
  custom: {
    50: '#955b59',
    500: '#63171e',
    950: '#000000',
  },
}

SCSS

$custom: #63171e;
$custom-light: #955b59;
$custom-dark: #000000;

JSON

{
  "hex": "#63171e",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 30
  },
  "hsl": {
    "h": 354.474,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33597,
    "c": 0.10791,
    "h": 20.3
  },
  "luminance": 0.03359
}

Semantic roles & 50–950 ramp

primary

#63171E

secondary

#3C9A91

accent

#E5D642

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63171E

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

Preview Lab → · Contrast checker → · Palette generator →