#5B121F#5B121F

#5B121F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.5% C 0.104 H 15.8°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#5B121F
RGB	rgb(91, 18, 31)
HSL	hsl(349, 67%, 21%)
HSV	hsv(349, 80%, 36%)
CMYK	cmyk(0%, 80.2%, 65.9%, 64.3%)
CIE-LAB	lab(19.04, 33.50, 11.67)
CIE-LCH	lch(19.04, 35.48, 19.20°)
OKLab	oklab(31.52% 0.1003 0.0284)
OKLCH	oklch(31.52% 0.104 15.8)
XYZ	xyz(4.7785, 2.7564, 1.5765)
Luminance	0.0276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B121F #125B4E

analogous

#5B1244 #5B121F #5B2A12

triadic

#5B121F #1F5B12 #121F5B

tetradic

#5B121F #445B12 #125B4E #2A125B

square

#5B121F #445B12 #125B4E #2A125B

split-complementary

#5B121F #125B2A #12445B

monochromatic

#1A0509 #28080E #5B121F #8E1C30 #C12642

Accessibility & contrast

On white

13.54

#5B121F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B121F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B121F

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B121F	#FFFFFF	#000000	##FFFFFF
##5B121F	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26251F

Deuteranopia (green-blind)

#39341D

Tritanopia (blue-blind)

#640017

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b121f;
/* rgb */ color: rgb(91, 18, 31);
/* oklch */ color: oklch(31.5% 0.104 15.8);

Tailwind

colors: {
  custom: {
    50: '#8f575a',
    500: '#5b121f',
    950: '#000000',
  },
}

SCSS

$custom: #5b121f;
$custom-light: #8f575a;
$custom-dark: #000000;

JSON

{
  "hex": "#5b121f",
  "rgb": {
    "r": 91,
    "g": 18,
    "b": 31
  },
  "hsl": {
    "h": 349.315,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31518,
    "c": 0.10426,
    "h": 15.8
  },
  "luminance": 0.02756
}

Semantic roles & 50–950 ramp

primary

#5B121F

secondary

#359383

accent

#EACB3E

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B121F

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

Preview Lab → · Contrast checker → · Palette generator →