#51180C#51180C

#51180C is a dark, moderate red. Relative luminance 0.024; OKLCH L 30.0% C 0.088 H 33.6°. Best body text is #FFFFFF at 14.13:1 contrast (WCAG AA passes).

Color values

HEX	#51180C
RGB	rgb(81, 24, 12)
HSL	hsl(10, 74%, 18%)
HSV	hsv(10, 85%, 32%)
CMYK	cmyk(0%, 70.4%, 85.2%, 68.2%)
CIE-LAB	lab(17.60, 25.95, 21.51)
CIE-LCH	lch(17.60, 33.71, 39.65°)
OKLab	oklab(29.95% 0.0734 0.0488)
OKLCH	oklch(29.95% 0.088 33.6)
XYZ	xyz(3.7868, 2.4297, 0.6173)
Luminance	0.0243 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51180C #0C4551

analogous

#510C22 #51180C #513A0C

triadic

#51180C #0C5118 #180C51

tetradic

#51180C #22510C #0C4551 #3A0C51

square

#51180C #22510C #0C4551 #3A0C51

split-complementary

#51180C #0C513A #0C2251

monochromatic

#1B0804 #1C0804 #51180C #862814 #BC381C

Accessibility & contrast

On white

14.13

#51180C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#51180C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51180C

14.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51180C	#FFFFFF	#000000	##FFFFFF
##51180C	1.00	14.13	1.49	14.13
#FFFFFF	14.13	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28230A

Deuteranopia (green-blind)

#36300A

Tritanopia (blue-blind)

#5A0916

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #51180c;
/* rgb */ color: rgb(81, 24, 12);
/* oklch */ color: oklch(30.0% 0.088 33.6);

Tailwind

colors: {
  custom: {
    50: '#88584c',
    500: '#51180c',
    950: '#000000',
  },
}

SCSS

$custom: #51180c;
$custom-light: #88584c;
$custom-dark: #000000;

JSON

{
  "hex": "#51180c",
  "rgb": {
    "r": 81,
    "g": 24,
    "b": 12
  },
  "hsl": {
    "h": 10.435,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.29951,
    "c": 0.08815,
    "h": 33.6
  },
  "luminance": 0.02429
}

Semantic roles & 50–950 ramp

primary

#51180C

secondary

#2C7C8C

accent

#D1F137

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #51180C

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

Preview Lab → · Contrast checker → · Palette generator →