#511F25#511F25

#511F25 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.5% C 0.075 H 15.1°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#511F25
RGB	rgb(81, 31, 37)
HSL	hsl(353, 45%, 22%)
HSV	hsv(353, 62%, 32%)
CMYK	cmyk(0%, 61.7%, 54.3%, 68.2%)
CIE-LAB	lab(19.49, 24.05, 7.72)
CIE-LCH	lch(19.49, 25.26, 17.79°)
OKLab	oklab(31.53% 0.0725 0.0196)
OKLCH	oklch(31.53% 0.075 15.1)
XYZ	xyz(4.2176, 2.8634, 2.0805)
Luminance	0.0286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F25 #1F514B

analogous

#511F3E #511F25 #51321F

triadic

#511F25 #25511F #1F2551

tetradic

#511F25 #3E511F #1F514B #321F51

square

#511F25 #3E511F #1F514B #321F51

split-complementary

#511F25 #1F5132 #1F3E51

monochromatic

#16080A #250E11 #511F25 #7D3039 #AA414D

Accessibility & contrast

On white

13.35

#511F25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#511F25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F25

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F25	#FFFFFF	#000000	##FFFFFF
##511F25	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2925

Deuteranopia (green-blind)

#373324

Tritanopia (blue-blind)

#591821

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #511f25;
/* rgb */ color: rgb(81, 31, 37);
/* oklch */ color: oklch(31.5% 0.075 15.1);

Tailwind

colors: {
  custom: {
    50: '#855d5f',
    500: '#511f25',
    950: '#000000',
  },
}

SCSS

$custom: #511f25;
$custom-light: #855d5f;
$custom-dark: #000000;

JSON

{
  "hex": "#511f25",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 37
  },
  "hsl": {
    "h": 352.8,
    "s": 44.643,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31525,
    "c": 0.0751,
    "h": 15.1
  },
  "luminance": 0.02863
}

Semantic roles & 50–950 ramp

primary

#511F25

secondary

#46867E

accent

#D4C553

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511F25

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

Preview Lab → · Contrast checker → · Palette generator →