#5B121B#5B121B

#5B121B is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.4% C 0.104 H 19.1°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#5B121B
RGB	rgb(91, 18, 27)
HSL	hsl(353, 67%, 21%)
HSV	hsv(353, 80%, 36%)
CMYK	cmyk(0%, 80.2%, 70.3%, 64.3%)
CIE-LAB	lab(18.96, 33.22, 14.37)
CIE-LCH	lch(18.96, 36.20, 23.39°)
OKLab	oklab(31.43% 0.0985 0.0342)
OKLCH	oklch(31.43% 0.104 19.1)
XYZ	xyz(4.7290, 2.7366, 1.3159)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B121B #125B52

analogous

#5B1240 #5B121B #5B2E12

triadic

#5B121B #1B5B12 #121B5B

tetradic

#5B121B #405B12 #125B52 #2E125B

square

#5B121B #405B12 #125B52 #2E125B

split-complementary

#5B121B #125B2E #12405B

monochromatic

#1A0508 #28080C #5B121B #8E1C2A #C12639

Accessibility & contrast

On white

13.57

#5B121B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B121B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B121B

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B121B	#FFFFFF	#000000	##FFFFFF
##5B121B	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27241B

Deuteranopia (green-blind)

#393419

Tritanopia (blue-blind)

#650016

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b121b;
/* rgb */ color: rgb(91, 18, 27);
/* oklch */ color: oklch(31.4% 0.104 19.1);

Tailwind

colors: {
  custom: {
    50: '#8f5757',
    500: '#5b121b',
    950: '#000000',
  },
}

SCSS

$custom: #5b121b;
$custom-light: #8f5757;
$custom-dark: #000000;

JSON

{
  "hex": "#5b121b",
  "rgb": {
    "r": 91,
    "g": 18,
    "b": 27
  },
  "hsl": {
    "h": 352.603,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31429,
    "c": 0.10428,
    "h": 19.1
  },
  "luminance": 0.02736
}

Semantic roles & 50–950 ramp

primary

#5B121B

secondary

#359388

accent

#EAD53E

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B121B

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

Preview Lab → · Contrast checker → · Palette generator →