#851717#851717

#851717 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.1% C 0.145 H 26.8°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#851717
RGB	rgb(133, 23, 23)
HSL	hsl(0, 71%, 31%)
HSV	hsv(0, 83%, 52%)
CMYK	cmyk(0%, 82.7%, 82.7%, 47.8%)
CIE-LAB	lab(28.55, 45.10, 30.29)
CIE-LCH	lch(28.55, 54.32, 33.89°)
OKLab	oklab(40.14% 0.1294 0.0653)
OKLCH	oklch(40.14% 0.145 26.8)
XYZ	xyz(10.1352, 5.6628, 1.3698)
Luminance	0.0566 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851717 #178585

analogous

#85174E #851717 #854E17

triadic

#851717 #178517 #171785

tetradic

#851717 #4E8517 #178585 #4E1785

square

#851717 #4E8517 #178585 #4E1785

split-complementary

#851717 #17854E #174E85

monochromatic

#1D0505 #510E0E #851717 #B92020 #DD3A3A

Accessibility & contrast

On white

9.85

#851717 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#851717 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851717

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851717	#FFFFFF	#000000	##FFFFFF
##851717	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3415

Deuteranopia (green-blind)

#554C12

Tritanopia (blue-blind)

#930019

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #851717;
/* rgb */ color: rgb(133, 23, 23);
/* oklch */ color: oklch(40.1% 0.145 26.8);

Tailwind

colors: {
  custom: {
    50: '#b16055',
    500: '#851717',
    950: '#000000',
  },
}

SCSS

$custom: #851717;
$custom-light: #b16055;
$custom-dark: #000000;

JSON

{
  "hex": "#851717",
  "rgb": {
    "r": 133,
    "g": 23,
    "b": 23
  },
  "hsl": {
    "h": 0,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40144,
    "c": 0.14492,
    "h": 26.8
  },
  "luminance": 0.05661
}

Semantic roles & 50–950 ramp

primary

#851717

secondary

#3FB9B9

accent

#EDED3B

background

#FBF6F4

surface

#F7EBE8

border

#D0C6C4

text

#120503

muted

#817A78

Preview Lab

Preview with #851717

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

Preview Lab → · Contrast checker → · Palette generator →