#550D1F#550D1F

#550D1F is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.8% C 0.103 H 12.3°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#550D1F
RGB	rgb(85, 13, 31)
HSL	hsl(345, 73%, 19%)
HSV	hsv(345, 85%, 33%)
CMYK	cmyk(0%, 84.7%, 63.5%, 66.7%)
CIE-LAB	lab(17.08, 33.32, 8.81)
CIE-LCH	lch(17.08, 34.46, 14.82°)
OKLab	oklab(29.83% 0.1006 0.0219)
OKLCH	oklch(29.83% 0.103 12.3)
XYZ	xyz(4.1380, 2.3187, 1.5257)
Luminance	0.0232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#550D1F #0D5543

analogous

#550D43 #550D1F #551F0D

triadic

#550D1F #1F550D #0D1F55

tetradic

#550D1F #43550D #0D5543 #1F0D55

square

#550D1F #43550D #0D5543 #1F0D55

split-complementary

#550D1F #0D551F #0D4355

monochromatic

#1B040A #20050C #550D1F #8A1532 #BF1D46

Accessibility & contrast

On white

14.35

#550D1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#550D1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #550D1F

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##550D1F	#FFFFFF	#000000	##FFFFFF
##550D1F	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21211F

Deuteranopia (green-blind)

#332F1D

Tritanopia (blue-blind)

#5E0015

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #550d1f;
/* rgb */ color: rgb(85, 13, 31);
/* oklch */ color: oklch(29.8% 0.103 12.3);

Tailwind

colors: {
  custom: {
    50: '#8a545a',
    500: '#550d1f',
    950: '#000000',
  },
}

SCSS

$custom: #550d1f;
$custom-light: #8a545a;
$custom-dark: #000000;

JSON

{
  "hex": "#550d1f",
  "rgb": {
    "r": 85,
    "g": 13,
    "b": 31
  },
  "hsl": {
    "h": 345,
    "s": 73.469,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29829,
    "c": 0.10294,
    "h": 12.3
  },
  "luminance": 0.02318
}

Semantic roles & 50–950 ramp

primary

#550D1F

secondary

#2E9077

accent

#F0C238

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0303

muted

#7D7878

Preview Lab

Preview with #550D1F

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

Preview Lab → · Contrast checker → · Palette generator →