#B42817#B42817

#B42817 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.4% C 0.179 H 30.7°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B42817
RGB	rgb(180, 40, 23)
HSL	hsl(6, 77%, 40%)
HSV	hsv(6, 87%, 71%)
CMYK	cmyk(0%, 77.8%, 87.2%, 29.4%)
CIE-LAB	lab(40.06, 54.46, 44.33)
CIE-LCH	lch(40.06, 70.22, 39.14°)
OKLab	oklab(50.42% 0.1536 0.0913)
OKLCH	oklch(50.42% 0.179 30.7)
XYZ	xyz(19.7383, 11.2859, 1.9496)
Luminance	0.1128 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42817 #17A3B4

analogous

#B41754 #B42817 #B47717

triadic

#B42817 #17B428 #2817B4

tetradic

#B42817 #54B417 #17A3B4 #7717B4

square

#B42817 #54B417 #17A3B4 #7717B4

split-complementary

#B42817 #17B477 #1754B4

monochromatic

#471009 #7E1C10 #B42817 #E33A25 #EA6B5B

Accessibility & contrast

On white

6.45

#B42817 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#B42817 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42817

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42817	#FFFFFF	#000000	##FFFFFF
##B42817	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B12

Deuteranopia (green-blind)

#77690C

Tritanopia (blue-blind)

#C70026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b42817;
/* rgb */ color: rgb(180, 40, 23);
/* oklch */ color: oklch(50.4% 0.179 30.7);

Tailwind

colors: {
  custom: {
    50: '#d56e57',
    500: '#b42817',
    950: '#000000',
  },
}

SCSS

$custom: #b42817;
$custom-light: #d56e57;
$custom-dark: #000000;

JSON

{
  "hex": "#b42817",
  "rgb": {
    "r": 180,
    "g": 40,
    "b": 23
  },
  "hsl": {
    "h": 6.497,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50419,
    "c": 0.17869,
    "h": 30.7
  },
  "luminance": 0.11283
}

Semantic roles & 50–950 ramp

primary

#B42817

secondary

#59C1CE

accent

#DFF434

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42817

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

Preview Lab → · Contrast checker → · Palette generator →