#5C101B#5C101B

#5C101B is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.4% C 0.107 H 18.5°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#5C101B
RGB	rgb(92, 16, 27)
HSL	hsl(351, 70%, 21%)
HSV	hsv(351, 83%, 36%)
CMYK	cmyk(0%, 82.6%, 70.7%, 63.9%)
CIE-LAB	lab(18.91, 34.30, 14.36)
CIE-LCH	lch(18.91, 37.19, 22.71°)
OKLab	oklab(31.43% 0.1018 0.0341)
OKLCH	oklch(31.43% 0.107 18.5)
XYZ	xyz(4.7973, 2.7258, 1.3102)
Luminance	0.0272 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5C101B #105C51

analogous

#5C1041 #5C101B #5C2B10

triadic

#5C101B #1B5C10 #101B5C

tetradic

#5C101B #415C10 #105C51 #2B105C

square

#5C101B #415C10 #105C51 #2B105C

split-complementary

#5C101B #105C2B #10415C

monochromatic

#1A0508 #28070C #5C101B #90192A #C4223A

Accessibility & contrast

On white

13.59

#5C101B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5C101B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5C101B

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5C101B	#FFFFFF	#000000	##FFFFFF
##5C101B	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26241B

Deuteranopia (green-blind)

#393419

Tritanopia (blue-blind)

#660015

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5c101b;
/* rgb */ color: rgb(92, 16, 27);
/* oklch */ color: oklch(31.4% 0.107 18.5);

Tailwind

colors: {
  custom: {
    50: '#905657',
    500: '#5c101b',
    950: '#000000',
  },
}

SCSS

$custom: #5c101b;
$custom-light: #905657;
$custom-dark: #000000;

JSON

{
  "hex": "#5c101b",
  "rgb": {
    "r": 92,
    "g": 16,
    "b": 27
  },
  "hsl": {
    "h": 351.316,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31434,
    "c": 0.10739,
    "h": 18.5
  },
  "luminance": 0.02725
}

Semantic roles & 50–950 ramp

primary

#5C101B

secondary

#339587

accent

#EDD33B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0303

muted

#7E7878

Preview Lab

Preview with #5C101B

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

Preview Lab → · Contrast checker → · Palette generator →