#511A1F#511A1F

#511A1F is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.082 H 18.1°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#511A1F
RGB	rgb(81, 26, 31)
HSL	hsl(355, 51%, 21%)
HSV	hsv(355, 68%, 32%)
CMYK	cmyk(0%, 67.9%, 61.7%, 68.2%)
CIE-LAB	lab(18.31, 26.18, 10.33)
CIE-LCH	lch(18.31, 28.14, 21.53°)
OKLab	oklab(30.59% 0.0783 0.0255)
OKLCH	oklch(30.59% 0.082 18.1)
XYZ	xyz(4.0104, 2.5876, 1.5843)
Luminance	0.0259 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A1F #1A514C

analogous

#511A3A #511A1F #51301A

triadic

#511A1F #1F511A #1A1F51

tetradic

#511A1F #3A511A #1A514C #301A51

square

#511A1F #3A511A #1A514C #301A51

split-complementary

#511A1F #1A5130 #1A3A51

monochromatic

#170709 #230B0D #511A1F #7F2931 #AE3842

Accessibility & contrast

On white

13.84

#511A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#511A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A1F

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A1F	#FFFFFF	#000000	##FFFFFF
##511A1F	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251F

Deuteranopia (green-blind)

#35311E

Tritanopia (blue-blind)

#59101C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #511a1f;
/* rgb */ color: rgb(81, 26, 31);
/* oklch */ color: oklch(30.6% 0.082 18.1);

Tailwind

colors: {
  custom: {
    50: '#865a5a',
    500: '#511a1f',
    950: '#000000',
  },
}

SCSS

$custom: #511a1f;
$custom-light: #865a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#511a1f",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 31
  },
  "hsl": {
    "h": 354.545,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30591,
    "c": 0.08237,
    "h": 18.1
  },
  "luminance": 0.02587
}

Semantic roles & 50–950 ramp

primary

#511A1F

secondary

#408781

accent

#DBCE4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511A1F

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

Preview Lab → · Contrast checker → · Palette generator →