#511D0F#511D0F

#511D0F is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.8% C 0.082 H 36.0°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#511D0F
RGB	rgb(81, 29, 15)
HSL	hsl(13, 69%, 19%)
HSV	hsv(13, 81%, 32%)
CMYK	cmyk(0%, 64.2%, 81.5%, 68.2%)
CIE-LAB	lab(18.64, 23.43, 21.28)
CIE-LCH	lch(18.64, 31.65, 42.25°)
OKLab	oklab(30.75% 0.0663 0.0481)
OKLCH	oklch(30.75% 0.082 36)
XYZ	xyz(3.9193, 2.6631, 0.7595)
Luminance	0.0266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D0F #0F4351

analogous

#510F22 #511D0F #513E0F

triadic

#511D0F #0F511D #1D0F51

tetradic

#511D0F #22510F #0F4351 #3E0F51

square

#511D0F #22510F #0F4351 #3E0F51

split-complementary

#511D0F #0F513E #0F2251

monochromatic

#1A0905 #1D0B05 #511D0F #852F19 #B84222

Accessibility & contrast

On white

13.70

#511D0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#511D0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D0F

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D0F	#FFFFFF	#000000	##FFFFFF
##511D0F	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260D

Deuteranopia (green-blind)

#38320D

Tritanopia (blue-blind)

#5A111A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511d0f;
/* rgb */ color: rgb(81, 29, 15);
/* oklch */ color: oklch(30.8% 0.082 36.0);

Tailwind

colors: {
  custom: {
    50: '#875b4e',
    500: '#511d0f',
    950: '#000000',
  },
}

SCSS

$custom: #511d0f;
$custom-light: #875b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#511d0f",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 15
  },
  "hsl": {
    "h": 12.727,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.3075,
    "c": 0.08185,
    "h": 36
  },
  "luminance": 0.02663
}

Semantic roles & 50–950 ramp

primary

#511D0F

secondary

#31788B

accent

#C6EC3C

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0401

muted

#7D7977

Preview Lab

Preview with #511D0F

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

Preview Lab → · Contrast checker → · Palette generator →