#B42717#B42717

#B42717 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.179 H 30.5°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#B42717
RGB	rgb(180, 39, 23)
HSL	hsl(6, 77%, 40%)
HSV	hsv(6, 87%, 71%)
CMYK	cmyk(0%, 78.3%, 87.2%, 29.4%)
CIE-LAB	lab(39.95, 54.77, 44.24)
CIE-LCH	lch(39.95, 70.41, 38.93°)
OKLab	oklab(50.34% 0.1545 0.0911)
OKLCH	oklch(50.34% 0.179 30.5)
XYZ	xyz(19.7050, 11.2194, 1.9385)
Luminance	0.1122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42717 #17A4B4

analogous

#B41755 #B42717 #B47617

triadic

#B42717 #17B427 #2717B4

tetradic

#B42717 #55B417 #17A4B4 #7617B4

square

#B42717 #55B417 #17A4B4 #7617B4

split-complementary

#B42717 #17B476 #1755B4

monochromatic

#470F09 #7E1B10 #B42717 #E33825 #EA6A5B

Accessibility & contrast

On white

6.48

#B42717 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#B42717 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42717

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42717	#FFFFFF	#000000	##FFFFFF
##B42717	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A12

Deuteranopia (green-blind)

#77690C

Tritanopia (blue-blind)

#C70025

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b42717;
/* rgb */ color: rgb(180, 39, 23);
/* oklch */ color: oklch(50.3% 0.179 30.5);

Tailwind

colors: {
  custom: {
    50: '#d56e57',
    500: '#b42717',
    950: '#000000',
  },
}

SCSS

$custom: #b42717;
$custom-light: #d56e57;
$custom-dark: #000000;

JSON

{
  "hex": "#b42717",
  "rgb": {
    "r": 180,
    "g": 39,
    "b": 23
  },
  "hsl": {
    "h": 6.115,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50336,
    "c": 0.17941,
    "h": 30.5
  },
  "luminance": 0.11216
}

Semantic roles & 50–950 ramp

primary

#B42717

secondary

#59C2CE

accent

#E0F434

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42717

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

Preview Lab → · Contrast checker → · Palette generator →