#B4251C#B4251C

#B4251C is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.180 H 29.0°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B4251C
RGB	rgb(180, 37, 28)
HSL	hsl(4, 73%, 41%)
HSV	hsv(4, 84%, 71%)
CMYK	cmyk(0%, 79.4%, 84.4%, 29.4%)
CIE-LAB	lab(39.77, 55.49, 41.63)
CIE-LCH	lch(39.77, 69.37, 36.88°)
OKLab	oklab(50.22% 0.1576 0.0874)
OKLCH	oklch(50.22% 0.18 29)
XYZ	xyz(19.6960, 11.1135, 2.2064)
Luminance	0.1111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4251C #1CABB4

analogous

#B41C5F #B4251C #B4711C

triadic

#B4251C #1CB425 #251CB4

tetradic

#B4251C #5FB41C #1CABB4 #711CB4

square

#B4251C #5FB41C #1CABB4 #711CB4

split-complementary

#B4251C #1CB471 #1C5FB4

monochromatic

#4A0F0C #7F1A14 #B4251C #DF392F #E76B64

Accessibility & contrast

On white

6.52

#B4251C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B4251C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4251C

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4251C	#FFFFFF	#000000	##FFFFFF
##B4251C	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A19

Deuteranopia (green-blind)

#766913

Tritanopia (blue-blind)

#C70025

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b4251c;
/* rgb */ color: rgb(180, 37, 28);
/* oklch */ color: oklch(50.2% 0.180 29.0);

Tailwind

colors: {
  custom: {
    50: '#d46d5a',
    500: '#b4251c',
    950: '#000000',
  },
}

SCSS

$custom: #b4251c;
$custom-light: #d46d5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b4251c",
  "rgb": {
    "r": 180,
    "g": 37,
    "b": 28
  },
  "hsl": {
    "h": 3.553,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50217,
    "c": 0.18022,
    "h": 29
  },
  "luminance": 0.1111
}

Semantic roles & 50–950 ramp

primary

#B4251C

secondary

#60C5CC

accent

#E5F038

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B4251C

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

Preview Lab → · Contrast checker → · Palette generator →