#511A1D#511A1D

#511A1D is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.5% C 0.082 H 20.2°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#511A1D
RGB	rgb(81, 26, 29)
HSL	hsl(357, 51%, 21%)
HSV	hsv(357, 68%, 32%)
CMYK	cmyk(0%, 67.9%, 64.2%, 68.2%)
CIE-LAB	lab(18.26, 26.01, 11.67)
CIE-LCH	lch(18.26, 28.51, 24.17°)
OKLab	oklab(30.54% 0.0774 0.0285)
OKLCH	oklch(30.54% 0.082 20.2)
XYZ	xyz(3.9849, 2.5773, 1.4498)
Luminance	0.0258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A1D #1A514E

analogous

#511A38 #511A1D #51321A

triadic

#511A1D #1D511A #1A1D51

tetradic

#511A1D #38511A #1A514E #321A51

square

#511A1D #38511A #1A514E #321A51

split-complementary

#511A1D #1A5132 #1A3851

monochromatic

#170708 #230B0C #511A1D #7F292E #AE383E

Accessibility & contrast

On white

13.86

#511A1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511A1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A1D

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A1D	#FFFFFF	#000000	##FFFFFF
##511A1D	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251D

Deuteranopia (green-blind)

#36311C

Tritanopia (blue-blind)

#590F1B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511a1d;
/* rgb */ color: rgb(81, 26, 29);
/* oklch */ color: oklch(30.5% 0.082 20.2);

Tailwind

colors: {
  custom: {
    50: '#865a58',
    500: '#511a1d',
    950: '#000000',
  },
}

SCSS

$custom: #511a1d;
$custom-light: #865a58;
$custom-dark: #000000;

JSON

{
  "hex": "#511a1d",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 29
  },
  "hsl": {
    "h": 356.727,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30543,
    "c": 0.08247,
    "h": 20.2
  },
  "luminance": 0.02577
}

Semantic roles & 50–950 ramp

primary

#511A1D

secondary

#408783

accent

#DBD34D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511A1D

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

Preview Lab → · Contrast checker → · Palette generator →