#511F11#511F11

#511F11 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.1% C 0.079 H 36.5°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#511F11
RGB	rgb(81, 31, 17)
HSL	hsl(13, 65%, 19%)
HSV	hsv(13, 79%, 32%)
CMYK	cmyk(0%, 61.7%, 79%, 68.2%)
CIE-LAB	lab(19.10, 22.41, 20.70)
CIE-LCH	lch(19.10, 30.51, 42.73°)
OKLab	oklab(31.11% 0.0636 0.047)
OKLCH	oklch(31.11% 0.079 36.5)
XYZ	xyz(3.9849, 2.7703, 0.8551)
Luminance	0.0277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F11 #114351

analogous

#511123 #511F11 #513F11

triadic

#511F11 #11511F #1F1151

tetradic

#511F11 #235111 #114351 #3F1151

square

#511F11 #235111 #114351 #3F1151

split-complementary

#511F11 #11513F #112351

monochromatic

#190A05 #1E0C06 #511F11 #84321C #B64626

Accessibility & contrast

On white

13.51

#511F11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511F11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F11

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F11	#FFFFFF	#000000	##FFFFFF
##511F11	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D280F

Deuteranopia (green-blind)

#393310

Tritanopia (blue-blind)

#5A141C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511f11;
/* rgb */ color: rgb(81, 31, 17);
/* oklch */ color: oklch(31.1% 0.079 36.5);

Tailwind

colors: {
  custom: {
    50: '#875c4f',
    500: '#511f11',
    950: '#000000',
  },
}

SCSS

$custom: #511f11;
$custom-light: #875c4f;
$custom-dark: #000000;

JSON

{
  "hex": "#511f11",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 17
  },
  "hsl": {
    "h": 13.125,
    "s": 65.306,
    "l": 19.216
  },
  "oklch": {
    "l": 0.31105,
    "c": 0.07901,
    "h": 36.5
  },
  "luminance": 0.0277
}

Semantic roles & 50–950 ramp

primary

#511F11

secondary

#34778A

accent

#C3E840

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511F11

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

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