#5B0F0F#5B0F0F

#5B0F0F is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.9% C 0.108 H 26.3°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#5B0F0F
RGB	rgb(91, 15, 15)
HSL	hsl(0, 72%, 21%)
HSV	hsv(0, 84%, 36%)
CMYK	cmyk(0%, 83.5%, 83.5%, 64.3%)
CIE-LAB	lab(18.37, 33.70, 21.47)
CIE-LCH	lch(18.37, 39.96, 32.50°)
OKLab	oklab(30.93% 0.0971 0.048)
OKLCH	oklch(30.93% 0.108 26.3)
XYZ	xyz(4.5720, 2.6010, 0.7132)
Luminance	0.0260 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B0F0F #0F5B5B

analogous

#5B0F35 #5B0F0F #5B350F

triadic

#5B0F0F #0F5B0F #0F0F5B

tetradic

#5B0F0F #355B0F #0F5B5B #350F5B

square

#5B0F0F #355B0F #0F5B5B #350F5B

split-complementary

#5B0F0F #0F5B35 #0F355B

monochromatic

#1A0404 #260606 #5B0F0F #901818 #C42020

Accessibility & contrast

On white

13.82

#5B0F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#5B0F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B0F0F

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B0F0F	#FFFFFF	#000000	##FFFFFF
##5B0F0F	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27220E

Deuteranopia (green-blind)

#39330C

Tritanopia (blue-blind)

#650010

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b0f0f;
/* rgb */ color: rgb(91, 15, 15);
/* oklch */ color: oklch(30.9% 0.108 26.3);

Tailwind

colors: {
  custom: {
    50: '#90554e',
    500: '#5b0f0f',
    950: '#000000',
  },
}

SCSS

$custom: #5b0f0f;
$custom-light: #90554e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b0f0f",
  "rgb": {
    "r": 91,
    "g": 15,
    "b": 15
  },
  "hsl": {
    "h": 0,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30931,
    "c": 0.10827,
    "h": 26.3
  },
  "luminance": 0.026
}

Semantic roles & 50–950 ramp

primary

#5B0F0F

secondary

#319595

accent

#EEEE39

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0301

muted

#7E7877

Preview Lab

Preview with #5B0F0F

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

Preview Lab → · Contrast checker → · Palette generator →