#5B1710#5B1710

#5B1710 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.100 H 29.6°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#5B1710
RGB	rgb(91, 23, 16)
HSL	hsl(6, 70%, 21%)
HSV	hsv(6, 82%, 36%)
CMYK	cmyk(0%, 74.7%, 82.4%, 64.3%)
CIE-LAB	lab(19.54, 30.54, 22.29)
CIE-LCH	lch(19.54, 37.81, 36.12°)
OKLab	oklab(31.81% 0.0874 0.0496)
OKLCH	oklch(31.81% 0.1 29.6)
XYZ	xyz(4.7148, 2.8751, 0.7968)
Luminance	0.0287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1710 #10545B

analogous

#5B102E #5B1710 #5B3C10

triadic

#5B1710 #105B17 #17105B

tetradic

#5B1710 #2E5B10 #10545B #3C105B

square

#5B1710 #2E5B10 #10545B #3C105B

split-complementary

#5B1710 #105B3C #102E5B

monochromatic

#1A0705 #270A07 #5B1710 #8F2419 #C33122

Accessibility & contrast

On white

13.34

#5B1710 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B1710 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1710

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1710	#FFFFFF	#000000	##FFFFFF
##5B1710	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260F

Deuteranopia (green-blind)

#3C350D

Tritanopia (blue-blind)

#650216

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b1710;
/* rgb */ color: rgb(91, 23, 16);
/* oklch */ color: oklch(31.8% 0.100 29.6);

Tailwind

colors: {
  custom: {
    50: '#90594e',
    500: '#5b1710',
    950: '#000000',
  },
}

SCSS

$custom: #5b1710;
$custom-light: #90594e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1710",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 16
  },
  "hsl": {
    "h": 5.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31805,
    "c": 0.10048,
    "h": 29.6
  },
  "luminance": 0.02874
}

Semantic roles & 50–950 ramp

primary

#5B1710

secondary

#338B94

accent

#DCED3B

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5B1710

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

Preview Lab → · Contrast checker → · Palette generator →