#551018#551018

#551018 is a dark, moderate red. Relative luminance 0.024; OKLCH L 30.0% C 0.100 H 19.6°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#551018
RGB	rgb(85, 16, 24)
HSL	hsl(353, 68%, 20%)
HSV	hsv(353, 81%, 33%)
CMYK	cmyk(0%, 81.2%, 71.8%, 66.7%)
CIE-LAB	lab(17.31, 31.72, 14.13)
CIE-LCH	lch(17.31, 34.73, 24.01°)
OKLab	oklab(29.95% 0.0939 0.0335)
OKLCH	oklch(29.95% 0.1 19.6)
XYZ	xyz(4.0969, 2.3684, 1.1054)
Luminance	0.0237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551018 #10554D

analogous

#55103B #551018 #552A10

triadic

#551018 #185510 #101855

tetradic

#551018 #3B5510 #10554D #2A1055

square

#551018 #3B5510 #10554D #2A1055

split-complementary

#551018 #10552A #103B55

monochromatic

#1A0507 #210609 #551018 #891A27 #BC2335

Accessibility & contrast

On white

14.25

#551018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#551018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551018

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551018	#FFFFFF	#000000	##FFFFFF
##551018	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242118

Deuteranopia (green-blind)

#353016

Tritanopia (blue-blind)

#5E0014

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #551018;
/* rgb */ color: rgb(85, 16, 24);
/* oklch */ color: oklch(30.0% 0.100 19.6);

Tailwind

colors: {
  custom: {
    50: '#8b5554',
    500: '#551018',
    950: '#000000',
  },
}

SCSS

$custom: #551018;
$custom-light: #8b5554;
$custom-dark: #000000;

JSON

{
  "hex": "#551018",
  "rgb": {
    "r": 85,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 353.043,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.29953,
    "c": 0.09969,
    "h": 19.6
  },
  "luminance": 0.02368
}

Semantic roles & 50–950 ramp

primary

#551018

secondary

#328F84

accent

#EBD73D

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0302

muted

#7E7878

Preview Lab

Preview with #551018

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

Preview Lab → · Contrast checker → · Palette generator →