#5A101A#5A101A

#5A101A is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.0% C 0.105 H 18.9°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#5A101A
RGB	rgb(90, 16, 26)
HSL	hsl(352, 70%, 21%)
HSV	hsv(352, 82%, 35%)
CMYK	cmyk(0%, 82.2%, 71.1%, 64.7%)
CIE-LAB	lab(18.45, 33.57, 14.39)
CIE-LCH	lch(18.45, 36.52, 23.20°)
OKLab	oklab(31.01% 0.0995 0.0341)
OKLCH	oklch(31.01% 0.105 18.9)
XYZ	xyz(4.5887, 2.6195, 1.2411)
Luminance	0.0262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A101A #105A50

analogous

#5A103F #5A101A #5A2B10

triadic

#5A101A #1A5A10 #101A5A

tetradic

#5A101A #3F5A10 #105A50 #2B105A

square

#5A101A #3F5A10 #105A50 #2B105A

split-complementary

#5A101A #105A2B #103F5A

monochromatic

#1A0508 #26070B #5A101A #8E1929 #C22238

Accessibility & contrast

On white

13.78

#5A101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#5A101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A101A

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A101A	#FFFFFF	#000000	##FFFFFF
##5A101A	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231A

Deuteranopia (green-blind)

#383318

Tritanopia (blue-blind)

#640014

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a101a;
/* rgb */ color: rgb(90, 16, 26);
/* oklch */ color: oklch(31.0% 0.105 18.9);

Tailwind

colors: {
  custom: {
    50: '#8f5656',
    500: '#5a101a',
    950: '#000000',
  },
}

SCSS

$custom: #5a101a;
$custom-light: #8f5656;
$custom-dark: #000000;

JSON

{
  "hex": "#5a101a",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 351.892,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31008,
    "c": 0.10522,
    "h": 18.9
  },
  "luminance": 0.02619
}

Semantic roles & 50–950 ramp

primary

#5A101A

secondary

#339386

accent

#EDD53B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A101A

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

Preview Lab → · Contrast checker → · Palette generator →