#5A101F#5A101F

#5A101F is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.1% C 0.105 H 14.8°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#5A101F
RGB	rgb(90, 16, 31)
HSL	hsl(348, 70%, 21%)
HSV	hsv(348, 82%, 35%)
CMYK	cmyk(0%, 82.2%, 65.6%, 64.7%)
CIE-LAB	lab(18.56, 33.91, 10.99)
CIE-LCH	lch(18.56, 35.65, 17.96°)
OKLab	oklab(31.12% 0.1018 0.0269)
OKLCH	oklch(31.12% 0.105 14.8)
XYZ	xyz(4.6495, 2.6439, 1.5615)
Luminance	0.0264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A101F #105A4B

analogous

#5A1044 #5A101F #5A2610

triadic

#5A101F #1F5A10 #101F5A

tetradic

#5A101F #445A10 #105A4B #26105A

square

#5A101F #445A10 #105A4B #26105A

split-complementary

#5A101F #105A26 #10445A

monochromatic

#1A0509 #26070D #5A101F #8E1931 #C22243

Accessibility & contrast

On white

13.74

#5A101F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5A101F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A101F

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A101F	#FFFFFF	#000000	##FFFFFF
##5A101F	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231F

Deuteranopia (green-blind)

#38331D

Tritanopia (blue-blind)

#630016

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a101f;
/* rgb */ color: rgb(90, 16, 31);
/* oklch */ color: oklch(31.1% 0.105 14.8);

Tailwind

colors: {
  custom: {
    50: '#8e565a',
    500: '#5a101f',
    950: '#000000',
  },
}

SCSS

$custom: #5a101f;
$custom-light: #8e565a;
$custom-dark: #000000;

JSON

{
  "hex": "#5a101f",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 31
  },
  "hsl": {
    "h": 347.838,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31121,
    "c": 0.10526,
    "h": 14.8
  },
  "luminance": 0.02643
}

Semantic roles & 50–950 ramp

primary

#5A101F

secondary

#339380

accent

#EDC93B

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A101F

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

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