#5A101C#5A101C

#5A101C is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.1% C 0.105 H 17.3°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#5A101C
RGB	rgb(90, 16, 28)
HSL	hsl(350, 70%, 21%)
HSV	hsv(350, 82%, 35%)
CMYK	cmyk(0%, 82.2%, 68.9%, 64.7%)
CIE-LAB	lab(18.49, 33.70, 13.03)
CIE-LCH	lch(18.49, 36.13, 21.14°)
OKLab	oklab(31.05% 0.1004 0.0313)
OKLCH	oklch(31.05% 0.105 17.3)
XYZ	xyz(4.6118, 2.6288, 1.3629)
Luminance	0.0263 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A101C #105A4E

analogous

#5A1041 #5A101C #5A2910

triadic

#5A101C #1C5A10 #101C5A

tetradic

#5A101C #415A10 #105A4E #29105A

square

#5A101C #415A10 #105A4E #29105A

split-complementary

#5A101C #105A29 #10415A

monochromatic

#1A0508 #26070C #5A101C #8E192C #C2223C

Accessibility & contrast

On white

13.77

#5A101C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5A101C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A101C

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A101C	#FFFFFF	#000000	##FFFFFF
##5A101C	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231C

Deuteranopia (green-blind)

#38331A

Tritanopia (blue-blind)

#630015

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a101c;
/* rgb */ color: rgb(90, 16, 28);
/* oklch */ color: oklch(31.1% 0.105 17.3);

Tailwind

colors: {
  custom: {
    50: '#8e5657',
    500: '#5a101c',
    950: '#000000',
  },
}

SCSS

$custom: #5a101c;
$custom-light: #8e5657;
$custom-dark: #000000;

JSON

{
  "hex": "#5a101c",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 28
  },
  "hsl": {
    "h": 350.27,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31051,
    "c": 0.10518,
    "h": 17.3
  },
  "luminance": 0.02628
}

Semantic roles & 50–950 ramp

primary

#5A101C

secondary

#339384

accent

#EDD03B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A101C

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

Preview Lab → · Contrast checker → · Palette generator →