#511010#511010

#511010 is a dark, moderate red. Relative luminance 0.022; OKLCH L 29.0% C 0.096 H 25.5°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#511010
RGB	rgb(81, 16, 16)
HSL	hsl(0, 67%, 19%)
HSV	hsv(0, 80%, 32%)
CMYK	cmyk(0%, 80.2%, 80.2%, 68.2%)
CIE-LAB	lab(16.30, 29.83, 17.89)
CIE-LCH	lch(16.30, 34.79, 30.95°)
OKLab	oklab(28.99% 0.0865 0.0413)
OKLCH	oklch(28.99% 0.096 25.5)
XYZ	xyz(3.6726, 2.1579, 0.7132)
Luminance	0.0216 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511010 #105151

analogous

#511031 #511010 #513110

triadic

#511010 #105110 #101051

tetradic

#511010 #315110 #105151 #311051

square

#511010 #315110 #105151 #311051

split-complementary

#511010 #105131 #103151

monochromatic

#1A0505 #1E0606 #511010 #841A1A #B72424

Accessibility & contrast

On white

14.67

#511010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#511010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511010

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511010	#FFFFFF	#000000	##FFFFFF
##511010	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0F

Deuteranopia (green-blind)

#332D0E

Tritanopia (blue-blind)

#5A0011

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #511010;
/* rgb */ color: rgb(81, 16, 16);
/* oklch */ color: oklch(29.0% 0.096 25.5);

Tailwind

colors: {
  custom: {
    50: '#88544e',
    500: '#511010',
    950: '#000000',
  },
}

SCSS

$custom: #511010;
$custom-light: #88544e;
$custom-dark: #000000;

JSON

{
  "hex": "#511010",
  "rgb": {
    "r": 81,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.28992,
    "c": 0.09586,
    "h": 25.5
  },
  "luminance": 0.02157
}

Semantic roles & 50–950 ramp

primary

#511010

secondary

#328B8B

accent

#EAEA3E

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #511010

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

Preview Lab → · Contrast checker → · Palette generator →