#551B0F#551B0F

#551B0F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.2% C 0.089 H 33.5°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#551B0F
RGB	rgb(85, 27, 15)
HSL	hsl(10, 70%, 20%)
HSV	hsv(10, 82%, 33%)
CMYK	cmyk(0%, 68.2%, 82.4%, 66.7%)
CIE-LAB	lab(19.01, 26.19, 21.91)
CIE-LCH	lch(19.01, 34.15, 39.91°)
OKLab	oklab(31.18% 0.0744 0.0491)
OKLCH	oklch(31.18% 0.089 33.5)
XYZ	xyz(4.2249, 2.7502, 0.7602)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B0F #0F4955

analogous

#550F26 #551B0F #553E0F

triadic

#551B0F #0F551B #1B0F55

tetradic

#551B0F #26550F #0F4955 #3E0F55

square

#551B0F #26550F #0F4955 #3E0F55

split-complementary

#551B0F #0F553E #0F2655

monochromatic

#1A0805 #210A06 #551B0F #892C18 #BD3C21

Accessibility & contrast

On white

13.55

#551B0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#551B0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B0F

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B0F	#FFFFFF	#000000	##FFFFFF
##551B0F	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260D

Deuteranopia (green-blind)

#3A330D

Tritanopia (blue-blind)

#5E0C19

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #551b0f;
/* rgb */ color: rgb(85, 27, 15);
/* oklch */ color: oklch(31.2% 0.089 33.5);

Tailwind

colors: {
  custom: {
    50: '#8b5a4e',
    500: '#551b0f',
    950: '#000000',
  },
}

SCSS

$custom: #551b0f;
$custom-light: #8b5a4e;
$custom-dark: #000000;

JSON

{
  "hex": "#551b0f",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 15
  },
  "hsl": {
    "h": 10.286,
    "s": 70,
    "l": 19.608
  },
  "oklch": {
    "l": 0.31181,
    "c": 0.08912,
    "h": 33.5
  },
  "luminance": 0.0275
}

Semantic roles & 50–950 ramp

primary

#551B0F

secondary

#317F8F

accent

#CEED3B

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #551B0F

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

Preview Lab → · Contrast checker → · Palette generator →