#B43921#B43921

#B43921 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.163 H 33.0°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B43921
RGB	rgb(180, 57, 33)
HSL	hsl(10, 69%, 42%)
HSV	hsv(10, 82%, 71%)
CMYK	cmyk(0%, 68.3%, 81.7%, 29.4%)
CIE-LAB	lab(42.37, 48.55, 41.50)
CIE-LCH	lch(42.37, 63.87, 40.52°)
OKLab	oklab(52.17% 0.1369 0.089)
OKLCH	oklch(52.17% 0.163 33)
XYZ	xyz(20.5624, 12.7425, 2.8154)
Luminance	0.1274 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43921 #219CB4

analogous

#B42153 #B43921 #B48321

triadic

#B43921 #21B439 #3921B4

tetradic

#B43921 #53B421 #219CB4 #8321B4

square

#B43921 #53B421 #219CB4 #8321B4

split-complementary

#B43921 #21B483 #2153B4

monochromatic

#4D180E #802918 #B43921 #DA5238 #E47F6B

Accessibility & contrast

On white

5.92

#B43921 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B43921 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43921

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43921	#FFFFFF	#000000	##FFFFFF
##B43921	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D531D

Deuteranopia (green-blind)

#7B6E1B

Tritanopia (blue-blind)

#C60E35

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43921;
/* rgb */ color: rgb(180, 57, 33);
/* oklch */ color: oklch(52.2% 0.163 33.0);

Tailwind

colors: {
  custom: {
    50: '#d3765e',
    500: '#b43921',
    950: '#000000',
  },
}

SCSS

$custom: #b43921;
$custom-light: #d3765e;
$custom-dark: #000000;

JSON

{
  "hex": "#b43921",
  "rgb": {
    "r": 180,
    "g": 57,
    "b": 33
  },
  "hsl": {
    "h": 9.796,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.52173,
    "c": 0.16332,
    "h": 33
  },
  "luminance": 0.12739
}

Semantic roles & 50–950 ramp

primary

#B43921

secondary

#67BACA

accent

#CFEC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43921

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

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