#551C0F#551C0F

#551C0F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.3% C 0.088 H 34.3°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX#551C0F
RGBrgb(85, 28, 15)
HSLhsl(11, 70%, 20%)
HSVhsv(11, 82%, 33%)
CMYKcmyk(0%, 67.1%, 82.4%, 66.7%)
CIE-LABlab(19.21, 25.67, 22.14)
CIE-LCHlch(19.21, 33.90, 40.78°)
OKLaboklab(31.33% 0.0727 0.0496)
OKLCHoklch(31.33% 0.088 34.3)
XYZxyz(4.2482, 2.7969, 0.7680)
Luminance0.0280 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#551C0F #0F4855
analogous
#550F25 #551C0F #553F0F
triadic
#551C0F #0F551C #1C0F55
tetradic
#551C0F #25550F #0F4855 #3F0F55
square
#551C0F #25550F #0F4855 #3F0F55
split-complementary
#551C0F #0F553F #0F2555
monochromatic
#1A0905 #210B06 #551C0F #892D18 #BD3E21

Accessibility & contrast

On white

13.47
#551C0F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.56
#551C0F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C0F
13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##551C0F#FFFFFF#000000##FFFFFF
##551C0F1.0013.471.5613.47
#FFFFFF13.471.0021.001.00
#0000001.5621.001.0021.00
##FFFFFF13.471.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2C270D
Deuteranopia (green-blind)
#3A330D
Tritanopia (blue-blind)
#5E0E19
Achromatopsia (no color)
#2F2F2F

Design tokens & code

CSS
--color: #551c0f;
/* rgb */ color: rgb(85, 28, 15);
/* oklch */ color: oklch(31.3% 0.088 34.3);
Tailwind
colors: {
  custom: {
    50: '#8b5b4e',
    500: '#551c0f',
    950: '#000000',
  },
}
SCSS
$custom: #551c0f;
$custom-light: #8b5b4e;
$custom-dark: #000000;
JSON
{
  "hex": "#551c0f",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 15
  },
  "hsl": {
    "h": 11.143,
    "s": 70,
    "l": 19.608
  },
  "oklch": {
    "l": 0.31329,
    "c": 0.08803,
    "h": 34.3
  },
  "luminance": 0.02796
}

Semantic roles & 50–950 ramp

primary
#551C0F
secondary
#317D8F
accent
#CCED3B
background
#F9F5F4
surface
#F1E9E7
border
#CBC5C3
text
#0D0401
muted
#7E7977

Preview Lab

Preview with #551C0F

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

Preview Lab → · Contrast checker → · Palette generator →

#551C0F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva