#551B0C#551B0C

#551B0C is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.1% C 0.090 H 35.4°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#551B0C
RGB	rgb(85, 27, 12)
HSL	hsl(12, 75%, 19%)
HSV	hsv(12, 86%, 33%)
CMYK	cmyk(0%, 68.2%, 85.9%, 66.7%)
CIE-LAB	lab(18.98, 26.06, 23.35)
CIE-LCH	lch(18.98, 34.99, 41.86°)
OKLab	oklab(31.15% 0.0733 0.0521)
OKLCH	oklch(31.15% 0.09 35.4)
XYZ	xyz(4.2051, 2.7423, 0.6556)
Luminance	0.0274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B0C #0C4655

analogous

#550C22 #551B0C #55400C

triadic

#551B0C #0C551B #1B0C55

tetradic

#551B0C #22550C #0C4655 #400C55

square

#551B0C #22550C #0C4655 #400C55

split-complementary

#551B0C #0C5540 #0C2255

monochromatic

#1B0904 #1F0A04 #551B0C #8B2C14 #C03D1B

Accessibility & contrast

On white

13.56

#551B0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#551B0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B0C

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B0C	#FFFFFF	#000000	##FFFFFF
##551B0C	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260A

Deuteranopia (green-blind)

#3A330A

Tritanopia (blue-blind)

#5E0C18

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #551b0c;
/* rgb */ color: rgb(85, 27, 12);
/* oklch */ color: oklch(31.1% 0.090 35.4);

Tailwind

colors: {
  custom: {
    50: '#8b5a4c',
    500: '#551b0c',
    950: '#000000',
  },
}

SCSS

$custom: #551b0c;
$custom-light: #8b5a4c;
$custom-dark: #000000;

JSON

{
  "hex": "#551b0c",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 12
  },
  "hsl": {
    "h": 12.329,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.31145,
    "c": 0.08989,
    "h": 35.4
  },
  "luminance": 0.02742
}

Semantic roles & 50–950 ramp

primary

#551B0C

secondary

#2D7C90

accent

#CBF236

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #551B0C

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

Preview Lab → · Contrast checker → · Palette generator →