#511F1A#511F1A

#511F1A is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.3% C 0.076 H 28.0°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#511F1A
RGB	rgb(81, 31, 26)
HSL	hsl(5, 51%, 21%)
HSV	hsv(5, 68%, 32%)
CMYK	cmyk(0%, 61.7%, 67.9%, 68.2%)
CIE-LAB	lab(19.24, 23.02, 15.01)
CIE-LCH	lch(19.24, 27.48, 33.10°)
OKLab	oklab(31.26% 0.0674 0.0358)
OKLCH	oklch(31.26% 0.076 28)
XYZ	xyz(4.0701, 2.8044, 1.3040)
Luminance	0.0280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F1A #1A4C51

analogous

#511A30 #511F1A #513A1A

triadic

#511F1A #1A511F #1F1A51

tetradic

#511F1A #30511A #1A4C51 #3A1A51

square

#511F1A #30511A #1A4C51 #3A1A51

split-complementary

#511F1A #1A513A #1A3051

monochromatic

#170907 #230D0B #511F1A #7F3129 #AE4238

Accessibility & contrast

On white

13.45

#511F1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#511F1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F1A

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F1A	#FFFFFF	#000000	##FFFFFF
##511F1A	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2819

Deuteranopia (green-blind)

#383319

Tritanopia (blue-blind)

#59161E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #511f1a;
/* rgb */ color: rgb(81, 31, 26);
/* oklch */ color: oklch(31.3% 0.076 28.0);

Tailwind

colors: {
  custom: {
    50: '#865c56',
    500: '#511f1a',
    950: '#000000',
  },
}

SCSS

$custom: #511f1a;
$custom-light: #865c56;
$custom-dark: #000000;

JSON

{
  "hex": "#511f1a",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 26
  },
  "hsl": {
    "h": 5.455,
    "s": 51.402,
    "l": 20.98
  },
  "oklch": {
    "l": 0.3126,
    "c": 0.07634,
    "h": 28
  },
  "luminance": 0.02804
}

Semantic roles & 50–950 ramp

primary

#511F1A

secondary

#408187

accent

#CEDB4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #511F1A

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

Preview Lab → · Contrast checker → · Palette generator →