#B42D1B#B42D1B

#B42D1B is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.174 H 31.0°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#B42D1B
RGB	rgb(180, 45, 27)
HSL	hsl(7, 74%, 41%)
HSV	hsv(7, 85%, 71%)
CMYK	cmyk(0%, 75%, 85%, 29.4%)
CIE-LAB	lab(40.67, 52.92, 42.94)
CIE-LCH	lch(40.67, 68.15, 39.06°)
OKLab	oklab(50.89% 0.1494 0.0899)
OKLCH	oklch(50.89% 0.174 31)
XYZ	xyz(19.9610, 11.6624, 2.2367)
Luminance	0.1166 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42D1B #1BA2B4

analogous

#B41B55 #B42D1B #B4791B

triadic

#B42D1B #1BB42D #2D1BB4

tetradic

#B42D1B #55B41B #1BA2B4 #791BB4

square

#B42D1B #55B41B #1BA2B4 #791BB4

split-complementary

#B42D1B #1BB479 #1B55B4

monochromatic

#4A120B #7F2013 #B42D1B #DF422D #E77262

Accessibility & contrast

On white

6.30

#B42D1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#B42D1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42D1B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42D1B	#FFFFFF	#000000	##FFFFFF
##B42D1B	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D17

Deuteranopia (green-blind)

#786B13

Tritanopia (blue-blind)

#C7002A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42d1b;
/* rgb */ color: rgb(180, 45, 27);
/* oklch */ color: oklch(50.9% 0.174 31.0);

Tailwind

colors: {
  custom: {
    50: '#d4705a',
    500: '#b42d1b',
    950: '#000000',
  },
}

SCSS

$custom: #b42d1b;
$custom-light: #d4705a;
$custom-dark: #000000;

JSON

{
  "hex": "#b42d1b",
  "rgb": {
    "r": 180,
    "g": 45,
    "b": 27
  },
  "hsl": {
    "h": 7.059,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50887,
    "c": 0.1744,
    "h": 31
  },
  "luminance": 0.11659
}

Semantic roles & 50–950 ramp

primary

#B42D1B

secondary

#5FBFCC

accent

#DBF137

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42D1B

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

Preview Lab → · Contrast checker → · Palette generator →