#5A101D#5A101D

#5A101D is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.1% C 0.105 H 16.5°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#5A101D
RGB	rgb(90, 16, 29)
HSL	hsl(349, 70%, 21%)
HSV	hsv(349, 82%, 35%)
CMYK	cmyk(0%, 82.2%, 67.8%, 64.7%)
CIE-LAB	lab(18.51, 33.77, 12.35)
CIE-LCH	lch(18.51, 35.96, 20.09°)
OKLab	oklab(31.07% 0.1009 0.0298)
OKLCH	oklch(31.07% 0.105 16.5)
XYZ	xyz(4.6240, 2.6336, 1.4270)
Luminance	0.0263 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A101D #105A4D

analogous

#5A1042 #5A101D #5A2810

triadic

#5A101D #1D5A10 #101D5A

tetradic

#5A101D #425A10 #105A4D #28105A

square

#5A101D #425A10 #105A4D #28105A

split-complementary

#5A101D #105A28 #10425A

monochromatic

#1A0508 #26070C #5A101D #8E192E #C2223E

Accessibility & contrast

On white

13.76

#5A101D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5A101D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A101D

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A101D	#FFFFFF	#000000	##FFFFFF
##5A101D	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231D

Deuteranopia (green-blind)

#38331B

Tritanopia (blue-blind)

#630016

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a101d;
/* rgb */ color: rgb(90, 16, 29);
/* oklch */ color: oklch(31.1% 0.105 16.5);

Tailwind

colors: {
  custom: {
    50: '#8e5658',
    500: '#5a101d',
    950: '#000000',
  },
}

SCSS

$custom: #5a101d;
$custom-light: #8e5658;
$custom-dark: #000000;

JSON

{
  "hex": "#5a101d",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 29
  },
  "hsl": {
    "h": 349.459,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31073,
    "c": 0.10519,
    "h": 16.5
  },
  "luminance": 0.02633
}

Semantic roles & 50–950 ramp

primary

#5A101D

secondary

#339382

accent

#EDCD3B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A101D

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

Preview Lab → · Contrast checker → · Palette generator →