#5A171B#5A171B

#5A171B is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.098 H 21.4°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#5A171B
RGB	rgb(90, 23, 27)
HSL	hsl(356, 59%, 22%)
HSV	hsv(356, 74%, 35%)
CMYK	cmyk(0%, 74.4%, 70%, 64.7%)
CIE-LAB	lab(19.50, 30.78, 15.02)
CIE-LCH	lch(19.50, 34.25, 26.01°)
OKLab	oklab(31.8% 0.0909 0.0357)
OKLCH	oklch(31.8% 0.098 21.4)
XYZ	xyz(4.7212, 2.8663, 1.3413)
Luminance	0.0287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A171B #175A56

analogous

#5A173D #5A171B #5A3517

triadic

#5A171B #1B5A17 #171B5A

tetradic

#5A171B #3D5A17 #175A56 #35175A

square

#5A171B #3D5A17 #175A56 #35175A

split-complementary

#5A171B #175A35 #173D5A

monochromatic

#180607 #290B0C #5A171B #8B232A #BB3038

Accessibility & contrast

On white

13.35

#5A171B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5A171B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A171B

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A171B	#FFFFFF	#000000	##FFFFFF
##5A171B	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29261B

Deuteranopia (green-blind)

#3A3419

Tritanopia (blue-blind)

#630519

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5a171b;
/* rgb */ color: rgb(90, 23, 27);
/* oklch */ color: oklch(31.8% 0.098 21.4);

Tailwind

colors: {
  custom: {
    50: '#8e5957',
    500: '#5a171b',
    950: '#000000',
  },
}

SCSS

$custom: #5a171b;
$custom-light: #8e5957;
$custom-dark: #000000;

JSON

{
  "hex": "#5a171b",
  "rgb": {
    "r": 90,
    "g": 23,
    "b": 27
  },
  "hsl": {
    "h": 356.418,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.31795,
    "c": 0.09762,
    "h": 21.4
  },
  "luminance": 0.02866
}

Semantic roles & 50–950 ramp

primary

#5A171B

secondary

#3C918C

accent

#E2D945

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5A171B

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

Preview Lab → · Contrast checker → · Palette generator →