#B4201B#B4201B

#B4201B is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.184 H 28.3°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B4201B
RGB	rgb(180, 32, 27)
HSL	hsl(2, 74%, 41%)
HSV	hsv(2, 85%, 71%)
CMYK	cmyk(0%, 82.2%, 85%, 29.4%)
CIE-LAB	lab(39.27, 56.85, 41.70)
CIE-LCH	lch(39.27, 70.50, 36.26°)
OKLab	oklab(49.84% 0.1617 0.0871)
OKLCH	oklch(49.84% 0.184 28.3)
XYZ	xyz(19.5392, 10.8187, 2.0961)
Luminance	0.1081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4201B #1BAFB4

analogous

#B41B62 #B4201B #B46C1B

triadic

#B4201B #1BB420 #201BB4

tetradic

#B4201B #62B41B #1BAFB4 #6C1BB4

square

#B4201B #62B41B #1BAFB4 #6C1BB4

split-complementary

#B4201B #1BB46C #1B62B4

monochromatic

#4A0D0B #7F1713 #B4201B #DF332D #E76662

Accessibility & contrast

On white

6.64

#B4201B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B4201B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4201B

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4201B	#FFFFFF	#000000	##FFFFFF
##B4201B	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514818

Deuteranopia (green-blind)

#756812

Tritanopia (blue-blind)

#C70021

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b4201b;
/* rgb */ color: rgb(180, 32, 27);
/* oklch */ color: oklch(49.8% 0.184 28.3);

Tailwind

colors: {
  custom: {
    50: '#d56b59',
    500: '#b4201b',
    950: '#000000',
  },
}

SCSS

$custom: #b4201b;
$custom-light: #d56b59;
$custom-dark: #000000;

JSON

{
  "hex": "#b4201b",
  "rgb": {
    "r": 180,
    "g": 32,
    "b": 27
  },
  "hsl": {
    "h": 1.961,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49844,
    "c": 0.18366,
    "h": 28.3
  },
  "luminance": 0.10815
}

Semantic roles & 50–950 ramp

primary

#B4201B

secondary

#5FC8CC

accent

#EBF137

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B4201B

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

Preview Lab → · Contrast checker → · Palette generator →