#5A100F#5A100F

#5A100F is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.8% C 0.106 H 26.7°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#5A100F
RGB	rgb(90, 16, 15)
HSL	hsl(1, 71%, 21%)
HSV	hsv(1, 83%, 35%)
CMYK	cmyk(0%, 82.2%, 83.3%, 64.7%)
CIE-LAB	lab(18.27, 32.99, 21.30)
CIE-LCH	lch(18.27, 39.27, 32.85°)
OKLab	oklab(30.82% 0.095 0.0477)
OKLCH	oklch(30.82% 0.106 26.7)
XYZ	xyz(4.4885, 2.5794, 0.7134)
Luminance	0.0258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A100F #0F595A

analogous

#5A0F33 #5A100F #5A350F

triadic

#5A100F #0F5A10 #100F5A

tetradic

#5A100F #335A0F #0F595A #350F5A

square

#5A100F #335A0F #0F595A #350F5A

split-complementary

#5A100F #0F5A35 #0F335A

monochromatic

#1A0504 #260706 #5A100F #8E1918 #C32320

Accessibility & contrast

On white

13.85

#5A100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#5A100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A100F

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A100F	#FFFFFF	#000000	##FFFFFF
##5A100F	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27220E

Deuteranopia (green-blind)

#39320C

Tritanopia (blue-blind)

#640011

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a100f;
/* rgb */ color: rgb(90, 16, 15);
/* oklch */ color: oklch(30.8% 0.106 26.7);

Tailwind

colors: {
  custom: {
    50: '#90564e',
    500: '#5a100f',
    950: '#000000',
  },
}

SCSS

$custom: #5a100f;
$custom-light: #90564e;
$custom-dark: #000000;

JSON

{
  "hex": "#5a100f",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 0.8,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.3082,
    "c": 0.10628,
    "h": 26.7
  },
  "luminance": 0.02579
}

Semantic roles & 50–950 ramp

primary

#5A100F

secondary

#319294

accent

#ECEE3A

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0301

muted

#7E7877

Preview Lab

Preview with #5A100F

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

Preview Lab → · Contrast checker → · Palette generator →