#5A151B#5A151B

#5A151B is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.6% C 0.100 H 20.4°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#5A151B
RGB	rgb(90, 21, 27)
HSL	hsl(355, 62%, 22%)
HSV	hsv(355, 77%, 35%)
CMYK	cmyk(0%, 76.7%, 70%, 64.7%)
CIE-LAB	lab(19.18, 31.66, 14.61)
CIE-LCH	lch(19.18, 34.87, 24.78°)
OKLab	oklab(31.56% 0.0937 0.0348)
OKLCH	oklch(31.56% 0.1 20.4)
XYZ	xyz(4.6829, 2.7898, 1.3286)
Luminance	0.0279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A151B #155A54

analogous

#5A153E #5A151B #5A3215

triadic

#5A151B #1B5A15 #151B5A

tetradic

#5A151B #3E5A15 #155A54 #32155A

square

#5A151B #3E5A15 #155A54 #32155A

split-complementary

#5A151B #155A32 #153E5A

monochromatic

#190607 #28090C #5A151B #8C212A #BD2C39

Accessibility & contrast

On white

13.48

#5A151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#5A151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A151B

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A151B	#FFFFFF	#000000	##FFFFFF
##5A151B	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251B

Deuteranopia (green-blind)

#393419

Tritanopia (blue-blind)

#630218

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5a151b;
/* rgb */ color: rgb(90, 21, 27);
/* oklch */ color: oklch(31.6% 0.100 20.4);

Tailwind

colors: {
  custom: {
    50: '#8e5857',
    500: '#5a151b',
    950: '#000000',
  },
}

SCSS

$custom: #5a151b;
$custom-light: #8e5857;
$custom-dark: #000000;

JSON

{
  "hex": "#5a151b",
  "rgb": {
    "r": 90,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 354.783,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.31557,
    "c": 0.09991,
    "h": 20.4
  },
  "luminance": 0.02789
}

Semantic roles & 50–950 ramp

primary

#5A151B

secondary

#39928A

accent

#E5D743

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5A151B

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

Preview Lab → · Contrast checker → · Palette generator →