#511D15#511D15

#511D15 is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.8% C 0.080 H 30.9°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#511D15
RGB	rgb(81, 29, 21)
HSL	hsl(8, 59%, 20%)
HSV	hsv(8, 74%, 32%)
CMYK	cmyk(0%, 64.2%, 74.1%, 68.2%)
CIE-LAB	lab(18.73, 23.78, 17.74)
CIE-LCH	lch(18.73, 29.67, 36.72°)
OKLab	oklab(30.84% 0.0687 0.0412)
OKLCH	oklch(30.84% 0.08 30.9)
XYZ	xyz(3.9684, 2.6827, 1.0182)
Luminance	0.0268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D15 #154951

analogous

#51152B #511D15 #513B15

triadic

#511D15 #15511D #1D1551

tetradic

#511D15 #2B5115 #154951 #3B1551

square

#511D15 #2B5115 #154951 #3B1551

split-complementary

#511D15 #15513B #152B51

monochromatic

#180906 #200C08 #511D15 #822E22 #B2402E

Accessibility & contrast

On white

13.67

#511D15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#511D15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D15

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D15	#FFFFFF	#000000	##FFFFFF
##511D15	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2614

Deuteranopia (green-blind)

#383214

Tritanopia (blue-blind)

#59121B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d15;
/* rgb */ color: rgb(81, 29, 21);
/* oklch */ color: oklch(30.8% 0.080 30.9);

Tailwind

colors: {
  custom: {
    50: '#875b52',
    500: '#511d15',
    950: '#000000',
  },
}

SCSS

$custom: #511d15;
$custom-light: #875b52;
$custom-dark: #000000;

JSON

{
  "hex": "#511d15",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 21
  },
  "hsl": {
    "h": 8,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.30841,
    "c": 0.08009,
    "h": 30.9
  },
  "luminance": 0.02682
}

Semantic roles & 50–950 ramp

primary

#511D15

secondary

#397E89

accent

#CDE246

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0C0402

muted

#7D7978

Preview Lab

Preview with #511D15

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

Preview Lab → · Contrast checker → · Palette generator →