#511F23#511F23

#511F23 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.5% C 0.075 H 17.6°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#511F23
RGB	rgb(81, 31, 35)
HSL	hsl(355, 45%, 22%)
HSV	hsv(355, 62%, 32%)
CMYK	cmyk(0%, 61.7%, 56.8%, 68.2%)
CIE-LAB	lab(19.44, 23.84, 9.05)
CIE-LCH	lch(19.44, 25.50, 20.78°)
OKLab	oklab(31.47% 0.0716 0.0227)
OKLCH	oklch(31.47% 0.075 17.6)
XYZ	xyz(4.1870, 2.8511, 1.9196)
Luminance	0.0285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F23 #1F514D

analogous

#511F3C #511F23 #51341F

triadic

#511F23 #23511F #1F2351

tetradic

#511F23 #3C511F #1F514D #341F51

square

#511F23 #3C511F #1F514D #341F51

split-complementary

#511F23 #1F5134 #1F3C51

monochromatic

#16080A #250E10 #511F23 #7D3036 #AA4149

Accessibility & contrast

On white

13.37

#511F23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#511F23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F23

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F23	#FFFFFF	#000000	##FFFFFF
##511F23	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2923

Deuteranopia (green-blind)

#373322

Tritanopia (blue-blind)

#591721

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #511f23;
/* rgb */ color: rgb(81, 31, 35);
/* oklch */ color: oklch(31.5% 0.075 17.6);

Tailwind

colors: {
  custom: {
    50: '#855d5d',
    500: '#511f23',
    950: '#000000',
  },
}

SCSS

$custom: #511f23;
$custom-light: #855d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#511f23",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 35
  },
  "hsl": {
    "h": 355.2,
    "s": 44.643,
    "l": 21.961
  },
  "oklch": {
    "l": 0.3147,
    "c": 0.07508,
    "h": 17.6
  },
  "luminance": 0.02851
}

Semantic roles & 50–950 ramp

primary

#511F23

secondary

#468681

accent

#D4CA53

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511F23

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

Preview Lab → · Contrast checker → · Palette generator →