#51171F#51171F

#51171F is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.2% C 0.086 H 15.9°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#51171F
RGB	rgb(81, 23, 31)
HSL	hsl(352, 56%, 20%)
HSV	hsv(352, 72%, 32%)
CMYK	cmyk(0%, 71.6%, 61.7%, 68.2%)
CIE-LAB	lab(17.74, 27.70, 9.57)
CIE-LCH	lch(17.74, 29.31, 19.06°)
OKLab	oklab(30.17% 0.0832 0.0237)
OKLCH	oklch(30.17% 0.086 15.9)
XYZ	xyz(3.9474, 2.4616, 1.5633)
Luminance	0.0246 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51171F #175149

analogous

#51173C #51171F #512C17

triadic

#51171F #1F5117 #171F51

tetradic

#51171F #3C5117 #175149 #2C1751

square

#51171F #3C5117 #175149 #2C1751

split-complementary

#51171F #17512C #173C51

monochromatic

#180709 #21090D #51171F #812531 #B03243

Accessibility & contrast

On white

14.07

#51171F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#51171F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51171F

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51171F	#FFFFFF	#000000	##FFFFFF
##51171F	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25241F

Deuteranopia (green-blind)

#34301E

Tritanopia (blue-blind)

#590C1A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #51171f;
/* rgb */ color: rgb(81, 23, 31);
/* oklch */ color: oklch(30.2% 0.086 15.9);

Tailwind

colors: {
  custom: {
    50: '#86585a',
    500: '#51171f',
    950: '#000000',
  },
}

SCSS

$custom: #51171f;
$custom-light: #86585a;
$custom-dark: #000000;

JSON

{
  "hex": "#51171f",
  "rgb": {
    "r": 81,
    "g": 23,
    "b": 31
  },
  "hsl": {
    "h": 351.724,
    "s": 55.769,
    "l": 20.392
  },
  "oklch": {
    "l": 0.30168,
    "c": 0.08647,
    "h": 15.9
  },
  "luminance": 0.02461
}

Semantic roles & 50–950 ramp

primary

#51171F

secondary

#3C887E

accent

#DFCA49

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0303

muted

#7D7878

Preview Lab

Preview with #51171F

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

Preview Lab → · Contrast checker → · Palette generator →