#551B28#551B28

#551B28 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.087 H 9.9°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#551B28
RGB	rgb(85, 27, 40)
HSL	hsl(347, 52%, 22%)
HSV	hsv(347, 68%, 33%)
CMYK	cmyk(0%, 68.2%, 52.9%, 66.7%)
CIE-LAB	lab(19.51, 28.11, 5.76)
CIE-LCH	lch(19.51, 28.69, 11.58°)
OKLab	oklab(31.71% 0.0853 0.0148)
OKLCH	oklch(31.71% 0.087 9.9)
XYZ	xyz(4.5216, 2.8689, 2.3227)
Luminance	0.0287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B28 #1B5548

analogous

#551B45 #551B28 #552B1B

triadic

#551B28 #28551B #1B2855

tetradic

#551B28 #45551B #1B5548 #2B1B55

square

#551B28 #45551B #1B5548 #2B1B55

split-complementary

#551B28 #1B552B #1B4555

monochromatic

#17070B #270C12 #551B28 #832A3E #B23954

Accessibility & contrast

On white

13.35

#551B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#551B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B28

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B28	#FFFFFF	#000000	##FFFFFF
##551B28	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282828

Deuteranopia (green-blind)

#373427

Tritanopia (blue-blind)

#5D1220

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #551b28;
/* rgb */ color: rgb(85, 27, 40);
/* oklch */ color: oklch(31.7% 0.087 9.9);

Tailwind

colors: {
  custom: {
    50: '#885b61',
    500: '#551b28',
    950: '#000000',
  },
}

SCSS

$custom: #551b28;
$custom-light: #885b61;
$custom-dark: #000000;

JSON

{
  "hex": "#551b28",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 40
  },
  "hsl": {
    "h": 346.552,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31714,
    "c": 0.08656,
    "h": 9.9
  },
  "luminance": 0.02868
}

Semantic roles & 50–950 ramp

primary

#551B28

secondary

#418B7A

accent

#DBBB4D

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0405

muted

#7D7979

Preview Lab

Preview with #551B28

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

Preview Lab → · Contrast checker → · Palette generator →