#511C16#511C16

#511C16 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.7% C 0.081 H 29.1°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#511C16
RGB	rgb(81, 28, 22)
HSL	hsl(6, 57%, 20%)
HSV	hsv(6, 73%, 32%)
CMYK	cmyk(0%, 65.4%, 72.8%, 68.2%)
CIE-LAB	lab(18.53, 24.40, 16.84)
CIE-LCH	lch(18.53, 29.64, 34.61°)
OKLab	oklab(30.7% 0.0708 0.0394)
OKLCH	oklch(30.7% 0.081 29.1)
XYZ	xyz(3.9538, 2.6383, 1.0599)
Luminance	0.0264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C16 #164B51

analogous

#51162D #511C16 #513A16

triadic

#511C16 #16511C #1C1651

tetradic

#511C16 #2D5116 #164B51 #3A1651

square

#511C16 #2D5116 #164B51 #3A1651

split-complementary

#511C16 #16513A #162D51

monochromatic

#180807 #210B09 #511C16 #812D23 #B13D30

Accessibility & contrast

On white

13.75

#511C16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#511C16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C16

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C16	#FFFFFF	#000000	##FFFFFF
##511C16	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2615

Deuteranopia (green-blind)

#373115

Tritanopia (blue-blind)

#59111B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511c16;
/* rgb */ color: rgb(81, 28, 22);
/* oklch */ color: oklch(30.7% 0.081 29.1);

Tailwind

colors: {
  custom: {
    50: '#875b53',
    500: '#511c16',
    950: '#000000',
  },
}

SCSS

$custom: #511c16;
$custom-light: #875b53;
$custom-dark: #000000;

JSON

{
  "hex": "#511c16",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 22
  },
  "hsl": {
    "h": 6.102,
    "s": 57.282,
    "l": 20.196
  },
  "oklch": {
    "l": 0.30701,
    "c": 0.08105,
    "h": 29.1
  },
  "luminance": 0.02638
}

Semantic roles & 50–950 ramp

primary

#511C16

secondary

#3A8188

accent

#D1E147

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511C16

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

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