#551810#551810

#551810 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.8% C 0.092 H 30.5°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#551810
RGB	rgb(85, 24, 16)
HSL	hsl(7, 68%, 20%)
HSV	hsv(7, 81%, 33%)
CMYK	cmyk(0%, 71.8%, 81.2%, 66.7%)
CIE-LAB	lab(18.46, 27.75, 20.72)
CIE-LCH	lch(18.46, 34.63, 36.75°)
OKLab	oklab(30.77% 0.0794 0.0468)
OKLCH	oklch(30.77% 0.092 30.5)
XYZ	xyz(4.1669, 2.6226, 0.7769)
Luminance	0.0262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551810 #104D55

analogous

#55102A #551810 #553B10

triadic

#551810 #105518 #181055

tetradic

#551810 #2A5510 #104D55 #3B1055

square

#551810 #2A5510 #104D55 #3B1055

split-complementary

#551810 #10553B #102A55

monochromatic

#1A0705 #210906 #551810 #89271A #BC3523

Accessibility & contrast

On white

13.78

#551810 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#551810 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551810

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551810	#FFFFFF	#000000	##FFFFFF
##551810	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29250F

Deuteranopia (green-blind)

#38320E

Tritanopia (blue-blind)

#5E0717

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #551810;
/* rgb */ color: rgb(85, 24, 16);
/* oklch */ color: oklch(30.8% 0.092 30.5);

Tailwind

colors: {
  custom: {
    50: '#8b594e',
    500: '#551810',
    950: '#000000',
  },
}

SCSS

$custom: #551810;
$custom-light: #8b594e;
$custom-dark: #000000;

JSON

{
  "hex": "#551810",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 16
  },
  "hsl": {
    "h": 6.957,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.30771,
    "c": 0.09218,
    "h": 30.5
  },
  "luminance": 0.02622
}

Semantic roles & 50–950 ramp

primary

#551810

secondary

#32848F

accent

#D7EB3D

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #551810

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

Preview Lab → · Contrast checker → · Palette generator →