#B0281C#B0281C

#B0281C is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.7% C 0.174 H 29.7°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B0281C
RGB	rgb(176, 40, 28)
HSL	hsl(5, 73%, 40%)
HSV	hsv(5, 84%, 69%)
CMYK	cmyk(0%, 77.3%, 84.1%, 31%)
CIE-LAB	lab(39.30, 53.35, 40.91)
CIE-LCH	lch(39.30, 67.23, 37.48°)
OKLab	oklab(49.73% 0.1514 0.0862)
OKLCH	oklch(49.73% 0.174 29.7)
XYZ	xyz(18.8752, 10.8346, 2.1958)
Luminance	0.1083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0281C #1CA4B0

analogous

#B01C5A #B0281C #B0721C

triadic

#B0281C #1CB028 #281CB0

tetradic

#B0281C #5AB01C #1CA4B0 #721CB0

square

#B0281C #5AB01C #1CA4B0 #721CB0

split-complementary

#B0281C #1CB072 #1C5AB0

monochromatic

#46100B #7B1C14 #B0281C #DD3A2C #E66B61

Accessibility & contrast

On white

6.63

#B0281C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B0281C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0281C

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0281C	#FFFFFF	#000000	##FFFFFF
##B0281C	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534919

Deuteranopia (green-blind)

#746714

Tritanopia (blue-blind)

#C20027

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b0281c;
/* rgb */ color: rgb(176, 40, 28);
/* oklch */ color: oklch(49.7% 0.174 29.7);

Tailwind

colors: {
  custom: {
    50: '#d16e5a',
    500: '#b0281c',
    950: '#000000',
  },
}

SCSS

$custom: #b0281c;
$custom-light: #d16e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b0281c",
  "rgb": {
    "r": 176,
    "g": 40,
    "b": 28
  },
  "hsl": {
    "h": 4.865,
    "s": 72.549,
    "l": 40
  },
  "oklch": {
    "l": 0.49725,
    "c": 0.17419,
    "h": 29.7
  },
  "luminance": 0.10832
}

Semantic roles & 50–950 ramp

primary

#B0281C

secondary

#5EC1CA

accent

#E0EF39

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B0281C

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

Preview Lab → · Contrast checker → · Palette generator →