#511A1C#511A1C

#511A1C is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.5% C 0.083 H 21.3°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#511A1C
RGB	rgb(81, 26, 28)
HSL	hsl(358, 51%, 21%)
HSV	hsv(358, 68%, 32%)
CMYK	cmyk(0%, 67.9%, 65.4%, 68.2%)
CIE-LAB	lab(18.24, 25.92, 12.35)
CIE-LCH	lch(18.24, 28.71, 25.47°)
OKLab	oklab(30.52% 0.0769 0.03)
OKLCH	oklch(30.52% 0.083 21.3)
XYZ	xyz(3.9727, 2.5725, 1.3857)
Luminance	0.0257 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A1C #1A514F

analogous

#511A37 #511A1C #51331A

triadic

#511A1C #1C511A #1A1C51

tetradic

#511A1C #37511A #1A514F #331A51

square

#511A1C #37511A #1A514F #331A51

split-complementary

#511A1C #1A5133 #1A3751

monochromatic

#170708 #230B0C #511A1C #7F292C #AE383C

Accessibility & contrast

On white

13.87

#511A1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#511A1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A1C

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A1C	#FFFFFF	#000000	##FFFFFF
##511A1C	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251C

Deuteranopia (green-blind)

#36311B

Tritanopia (blue-blind)

#590F1B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511a1c;
/* rgb */ color: rgb(81, 26, 28);
/* oklch */ color: oklch(30.5% 0.083 21.3);

Tailwind

colors: {
  custom: {
    50: '#865958',
    500: '#511a1c',
    950: '#000000',
  },
}

SCSS

$custom: #511a1c;
$custom-light: #865958;
$custom-dark: #000000;

JSON

{
  "hex": "#511a1c",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 28
  },
  "hsl": {
    "h": 357.818,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.3052,
    "c": 0.08256,
    "h": 21.3
  },
  "luminance": 0.02572
}

Semantic roles & 50–950 ramp

primary

#511A1C

secondary

#408785

accent

#DBD64D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511A1C

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

Preview Lab → · Contrast checker → · Palette generator →