#511515#511515

#511515 is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.7% C 0.090 H 24.4°. Best body text is #FFFFFF at 14.31:1 contrast (WCAG AA passes).

Color values

HEX	#511515
RGB	rgb(81, 21, 21)
HSL	hsl(0, 59%, 20%)
HSV	hsv(0, 74%, 32%)
CMYK	cmyk(0%, 74.1%, 74.1%, 68.2%)
CIE-LAB	lab(17.18, 27.91, 15.87)
CIE-LCH	lch(17.18, 32.11, 29.63°)
OKLab	oklab(29.68% 0.0817 0.0371)
OKLCH	oklch(29.68% 0.09 24.4)
XYZ	xyz(3.7973, 2.3403, 0.9611)
Luminance	0.0234 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511515 #155151

analogous

#511533 #511515 #513315

triadic

#511515 #155115 #151551

tetradic

#511515 #335115 #155151 #331551

square

#511515 #335115 #155151 #331551

split-complementary

#511515 #155133 #153351

monochromatic

#180606 #200808 #511515 #822222 #B22E2E

Accessibility & contrast

On white

14.31

#511515 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#511515 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511515

14.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511515	#FFFFFF	#000000	##FFFFFF
##511515	1.00	14.31	1.47	14.31
#FFFFFF	14.31	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252214

Deuteranopia (green-blind)

#352F13

Tritanopia (blue-blind)

#5A0516

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #511515;
/* rgb */ color: rgb(81, 21, 21);
/* oklch */ color: oklch(29.7% 0.090 24.4);

Tailwind

colors: {
  custom: {
    50: '#875752',
    500: '#511515',
    950: '#000000',
  },
}

SCSS

$custom: #511515;
$custom-light: #875752;
$custom-dark: #000000;

JSON

{
  "hex": "#511515",
  "rgb": {
    "r": 81,
    "g": 21,
    "b": 21
  },
  "hsl": {
    "h": 0,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.29679,
    "c": 0.08968,
    "h": 24.4
  },
  "luminance": 0.0234
}

Semantic roles & 50–950 ramp

primary

#511515

secondary

#398989

accent

#E2E246

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0302

muted

#7D7878

Preview Lab

Preview with #511515

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

Preview Lab → · Contrast checker → · Palette generator →