#551710#551710

#551710 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.6% C 0.093 H 29.8°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#551710
RGB	rgb(85, 23, 16)
HSL	hsl(6, 68%, 20%)
HSV	hsv(6, 81%, 33%)
CMYK	cmyk(0%, 72.9%, 81.2%, 66.7%)
CIE-LAB	lab(18.29, 28.23, 20.51)
CIE-LCH	lch(18.29, 34.90, 36.00°)
OKLab	oklab(30.64% 0.0809 0.0463)
OKLCH	oklch(30.64% 0.093 29.8)
XYZ	xyz(4.1467, 2.5821, 0.7702)
Luminance	0.0258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551710 #104E55

analogous

#55102C #551710 #553A10

triadic

#551710 #105517 #171055

tetradic

#551710 #2C5510 #104E55 #3A1055

square

#551710 #2C5510 #104E55 #3A1055

split-complementary

#551710 #10553A #102C55

monochromatic

#1A0705 #210906 #551710 #89251A #BC3323

Accessibility & contrast

On white

13.85

#551710 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#551710 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551710

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551710	#FFFFFF	#000000	##FFFFFF
##551710	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29240F

Deuteranopia (green-blind)

#38320E

Tritanopia (blue-blind)

#5E0516

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #551710;
/* rgb */ color: rgb(85, 23, 16);
/* oklch */ color: oklch(30.6% 0.093 29.8);

Tailwind

colors: {
  custom: {
    50: '#8b584e',
    500: '#551710',
    950: '#000000',
  },
}

SCSS

$custom: #551710;
$custom-light: #8b584e;
$custom-dark: #000000;

JSON

{
  "hex": "#551710",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 16
  },
  "hsl": {
    "h": 6.087,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.30637,
    "c": 0.09327,
    "h": 29.8
  },
  "luminance": 0.02581
}

Semantic roles & 50–950 ramp

primary

#551710

secondary

#32858F

accent

#D9EB3D

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #551710

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

Preview Lab → · Contrast checker → · Palette generator →