#B42E1B#B42E1B

#B42E1B is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.174 H 31.3°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#B42E1B
RGB	rgb(180, 46, 27)
HSL	hsl(7, 74%, 41%)
HSV	hsv(7, 85%, 71%)
CMYK	cmyk(0%, 74.4%, 85%, 29.4%)
CIE-LAB	lab(40.80, 52.57, 43.05)
CIE-LCH	lch(40.80, 67.95, 39.31°)
OKLab	oklab(50.98% 0.1484 0.0902)
OKLCH	oklch(50.98% 0.174 31.3)
XYZ	xyz(19.9997, 11.7396, 2.2496)
Luminance	0.1174 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42E1B #1BA1B4

analogous

#B41B54 #B42E1B #B47A1B

triadic

#B42E1B #1BB42E #2E1BB4

tetradic

#B42E1B #54B41B #1BA1B4 #7A1BB4

square

#B42E1B #54B41B #1BA1B4 #7A1BB4

split-complementary

#B42E1B #1BB47A #1B54B4

monochromatic

#4A130B #7F2013 #B42E1B #DF432D #E77362

Accessibility & contrast

On white

6.27

#B42E1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#B42E1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42E1B

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42E1B	#FFFFFF	#000000	##FFFFFF
##B42E1B	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D17

Deuteranopia (green-blind)

#786B13

Tritanopia (blue-blind)

#C7002B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42e1b;
/* rgb */ color: rgb(180, 46, 27);
/* oklch */ color: oklch(51.0% 0.174 31.3);

Tailwind

colors: {
  custom: {
    50: '#d4715a',
    500: '#b42e1b',
    950: '#000000',
  },
}

SCSS

$custom: #b42e1b;
$custom-light: #d4715a;
$custom-dark: #000000;

JSON

{
  "hex": "#b42e1b",
  "rgb": {
    "r": 180,
    "g": 46,
    "b": 27
  },
  "hsl": {
    "h": 7.451,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.5098,
    "c": 0.1736,
    "h": 31.3
  },
  "luminance": 0.11736
}

Semantic roles & 50–950 ramp

primary

#B42E1B

secondary

#5FBECC

accent

#DAF137

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42E1B

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

Preview Lab → · Contrast checker → · Palette generator →