#63171A#63171A

#63171A is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.108 H 23.2°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#63171A
RGB	rgb(99, 23, 26)
HSL	hsl(358, 62%, 24%)
HSV	hsv(358, 77%, 39%)
CMYK	cmyk(0%, 76.8%, 73.7%, 61.2%)
CIE-LAB	lab(21.36, 33.98, 18.41)
CIE-LCH	lch(21.36, 38.64, 28.45°)
OKLab	oklab(33.52% 0.0995 0.0427)
OKLCH	oklch(33.52% 0.108 23.2)
XYZ	xyz(5.6391, 3.3409, 1.3250)
Luminance	0.0334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63171A #176360

analogous

#631740 #63171A #633A17

triadic

#63171A #1A6317 #171A63

tetradic

#63171A #406317 #176360 #3A1763

square

#63171A #406317 #176360 #3A1763

split-complementary

#63171A #17633A #174063

monochromatic

#190607 #310B0D #63171A #952327 #C62E34

Accessibility & contrast

On white

12.59

#63171A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#63171A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63171A

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63171A	#FFFFFF	#000000	##FFFFFF
##63171A	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2919

Deuteranopia (green-blind)

#403918

Tritanopia (blue-blind)

#6D0019

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63171a;
/* rgb */ color: rgb(99, 23, 26);
/* oklch */ color: oklch(33.5% 0.108 23.2);

Tailwind

colors: {
  custom: {
    50: '#965a56',
    500: '#63171a',
    950: '#000000',
  },
}

SCSS

$custom: #63171a;
$custom-light: #965a56;
$custom-dark: #000000;

JSON

{
  "hex": "#63171a",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 26
  },
  "hsl": {
    "h": 357.632,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33521,
    "c": 0.10827,
    "h": 23.2
  },
  "luminance": 0.0334
}

Semantic roles & 50–950 ramp

primary

#63171A

secondary

#3C9A96

accent

#E5DF42

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63171A

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

Preview Lab → · Contrast checker → · Palette generator →