#511A1A#511A1A

#511A1A is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.5% C 0.083 H 23.4°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#511A1A
RGB	rgb(81, 26, 26)
HSL	hsl(0, 51%, 21%)
HSV	hsv(0, 68%, 32%)
CMYK	cmyk(0%, 67.9%, 67.9%, 68.2%)
CIE-LAB	lab(18.20, 25.76, 13.68)
CIE-LCH	lch(18.20, 29.17, 27.98°)
OKLab	oklab(30.48% 0.076 0.0329)
OKLCH	oklch(30.48% 0.083 23.4)
XYZ	xyz(3.9496, 2.5632, 1.2639)
Luminance	0.0256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A1A #1A5151

analogous

#511A35 #511A1A #51351A

triadic

#511A1A #1A511A #1A1A51

tetradic

#511A1A #35511A #1A5151 #351A51

square

#511A1A #35511A #1A5151 #351A51

split-complementary

#511A1A #1A5135 #1A3551

monochromatic

#170707 #230B0B #511A1A #7F2929 #AE3838

Accessibility & contrast

On white

13.88

#511A1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#511A1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A1A

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A1A	#FFFFFF	#000000	##FFFFFF
##511A1A	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251A

Deuteranopia (green-blind)

#363119

Tritanopia (blue-blind)

#590F1B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #511a1a;
/* rgb */ color: rgb(81, 26, 26);
/* oklch */ color: oklch(30.5% 0.083 23.4);

Tailwind

colors: {
  custom: {
    50: '#865956',
    500: '#511a1a',
    950: '#000000',
  },
}

SCSS

$custom: #511a1a;
$custom-light: #865956;
$custom-dark: #000000;

JSON

{
  "hex": "#511a1a",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 26
  },
  "hsl": {
    "h": 0,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30475,
    "c": 0.0828,
    "h": 23.4
  },
  "luminance": 0.02563
}

Semantic roles & 50–950 ramp

primary

#511A1A

secondary

#408787

accent

#DBDB4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511A1A

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

Preview Lab → · Contrast checker → · Palette generator →