#56100B#56100B

#56100B is a dark, moderate red. Relative luminance 0.024; OKLCH L 29.9% C 0.102 H 28.9°. Best body text is #FFFFFF at 14.24:1 contrast (WCAG AA passes).

Color values

HEX	#56100B
RGB	rgb(86, 16, 11)
HSL	hsl(4, 77%, 19%)
HSV	hsv(4, 87%, 34%)
CMYK	cmyk(0%, 81.4%, 87.2%, 66.3%)
CIE-LAB	lab(17.34, 31.43, 21.89)
CIE-LCH	lch(17.34, 38.30, 34.86°)
OKLab	oklab(29.95% 0.0896 0.0495)
OKLCH	oklch(29.95% 0.102 28.9)
XYZ	xyz(4.0839, 2.3738, 0.5597)
Luminance	0.0237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#56100B #0B5156

analogous

#560B2C #56100B #56360B

triadic

#56100B #0B5610 #100B56

tetradic

#56100B #2C560B #0B5156 #360B56

square

#56100B #2C560B #0B5156 #360B56

split-complementary

#56100B #0B5636 #0B2C56

monochromatic

#1B0503 #200604 #56100B #8C1A12 #C32419

Accessibility & contrast

On white

14.24

#56100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#56100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #56100B

14.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##56100B	#FFFFFF	#000000	##FFFFFF
##56100B	1.00	14.24	1.47	14.24
#FFFFFF	14.24	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26210A

Deuteranopia (green-blind)

#373008

Tritanopia (blue-blind)

#600010

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #56100b;
/* rgb */ color: rgb(86, 16, 11);
/* oklch */ color: oklch(29.9% 0.102 28.9);

Tailwind

colors: {
  custom: {
    50: '#8c554b',
    500: '#56100b',
    950: '#000000',
  },
}

SCSS

$custom: #56100b;
$custom-light: #8c554b;
$custom-dark: #000000;

JSON

{
  "hex": "#56100b",
  "rgb": {
    "r": 86,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 4,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29949,
    "c": 0.10239,
    "h": 28.9
  },
  "luminance": 0.02373
}

Semantic roles & 50–950 ramp

primary

#56100B

secondary

#2B8B91

accent

#E7F434

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #56100B

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

Preview Lab → · Contrast checker → · Palette generator →