#B42B3F#B42B3F

#B42B3F is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.2% C 0.172 H 18.1°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B42B3F
RGB	rgb(180, 43, 63)
HSL	hsl(351, 61%, 44%)
HSV	hsv(351, 76%, 71%)
CMYK	cmyk(0%, 76.1%, 65%, 29.4%)
CIE-LAB	lab(40.89, 55.08, 22.42)
CIE-LCH	lch(40.89, 59.46, 22.15°)
OKLab	oklab(51.19% 0.1638 0.0536)
OKLCH	oklch(51.19% 0.172 18.1)
XYZ	xyz(20.5857, 11.7930, 5.8940)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42B3F #2BB4A0

analogous

#B42B83 #B42B3F #B45B2B

triadic

#B42B3F #3FB42B #2B3FB4

tetradic

#B42B3F #83B42B #2BB4A0 #5B2BB4

square

#B42B3F #83B42B #2BB4A0 #5B2BB4

split-complementary

#B42B3F #2BB45B #2B83B4

monochromatic

#51131C #831F2E #B42B3F #D3495D #DF7A89

Accessibility & contrast

On white

6.25

#B42B3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B42B3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42B3F

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42B3F	#FFFFFF	#000000	##FFFFFF
##B42B3F	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524E3F

Deuteranopia (green-blind)

#756B3B

Tritanopia (blue-blind)

#C60034

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42b3f;
/* rgb */ color: rgb(180, 43, 63);
/* oklch */ color: oklch(51.2% 0.172 18.1);

Tailwind

colors: {
  custom: {
    50: '#d27073',
    500: '#b42b3f',
    950: '#000000',
  },
}

SCSS

$custom: #b42b3f;
$custom-light: #d27073;
$custom-dark: #000000;

JSON

{
  "hex": "#b42b3f",
  "rgb": {
    "r": 180,
    "g": 43,
    "b": 63
  },
  "hsl": {
    "h": 351.241,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51188,
    "c": 0.17229,
    "h": 18.1
  },
  "luminance": 0.1179
}

Semantic roles & 50–950 ramp

primary

#B42B3F

secondary

#73C7BB

accent

#E5CD43

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150808

muted

#837B7B

Preview Lab

Preview with #B42B3F

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

Preview Lab → · Contrast checker → · Palette generator →