#511F0F#511F0F

#511F0F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.1% C 0.080 H 38.0°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#511F0F
RGB	rgb(81, 31, 15)
HSL	hsl(15, 69%, 19%)
HSV	hsv(15, 81%, 32%)
CMYK	cmyk(0%, 61.7%, 81.5%, 68.2%)
CIE-LAB	lab(19.07, 22.30, 21.78)
CIE-LCH	lch(19.07, 31.17, 44.33°)
OKLab	oklab(31.08% 0.0628 0.0491)
OKLCH	oklch(31.08% 0.08 38)
XYZ	xyz(3.9700, 2.7643, 0.7764)
Luminance	0.0276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F0F #0F4151

analogous

#510F20 #511F0F #51400F

triadic

#511F0F #0F511F #1F0F51

tetradic

#511F0F #20510F #0F4151 #400F51

square

#511F0F #20510F #0F4151 #400F51

split-complementary

#511F0F #0F5140 #0F2051

monochromatic

#1A0A05 #1D0B05 #511F0F #853319 #B84722

Accessibility & contrast

On white

13.52

#511F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F0F

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F0F	#FFFFFF	#000000	##FFFFFF
##511F0F	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D270D

Deuteranopia (green-blind)

#39320E

Tritanopia (blue-blind)

#5A141C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511f0f;
/* rgb */ color: rgb(81, 31, 15);
/* oklch */ color: oklch(31.1% 0.080 38.0);

Tailwind

colors: {
  custom: {
    50: '#875c4e',
    500: '#511f0f',
    950: '#000000',
  },
}

SCSS

$custom: #511f0f;
$custom-light: #875c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#511f0f",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 15
  },
  "hsl": {
    "h": 14.545,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.31078,
    "c": 0.07969,
    "h": 38
  },
  "luminance": 0.02764
}

Semantic roles & 50–950 ramp

primary

#511F0F

secondary

#31758B

accent

#C1EC3C

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511F0F

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

Preview Lab → · Contrast checker → · Palette generator →