#B23921#B23921

#B23921 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.161 H 33.1°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B23921
RGB	rgb(178, 57, 33)
HSL	hsl(10, 69%, 41%)
HSV	hsv(10, 81%, 70%)
CMYK	cmyk(0%, 68%, 81.5%, 30.2%)
CIE-LAB	lab(42.01, 47.86, 41.02)
CIE-LCH	lch(42.01, 63.04, 40.60°)
OKLab	oklab(51.83% 0.135 0.0881)
OKLCH	oklch(51.83% 0.161 33.1)
XYZ	xyz(20.1001, 12.5040, 2.7937)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23921 #219AB2

analogous

#B22152 #B23921 #B28221

triadic

#B23921 #21B239 #3921B2

tetradic

#B23921 #52B221 #219AB2 #8221B2

square

#B23921 #52B221 #219AB2 #8221B2

split-complementary

#B23921 #21B282 #2152B2

monochromatic

#4B180E #7E2817 #B23921 #DA5136 #E37E6A

Accessibility & contrast

On white

6.00

#B23921 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B23921 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23921

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23921	#FFFFFF	#000000	##FFFFFF
##B23921	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C521D

Deuteranopia (green-blind)

#7A6D1B

Tritanopia (blue-blind)

#C41135

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23921;
/* rgb */ color: rgb(178, 57, 33);
/* oklch */ color: oklch(51.8% 0.161 33.1);

Tailwind

colors: {
  custom: {
    50: '#d2765e',
    500: '#b23921',
    950: '#000000',
  },
}

SCSS

$custom: #b23921;
$custom-light: #d2765e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23921",
  "rgb": {
    "r": 178,
    "g": 57,
    "b": 33
  },
  "hsl": {
    "h": 9.931,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51831,
    "c": 0.16123,
    "h": 33.1
  },
  "luminance": 0.12501
}

Semantic roles & 50–950 ramp

primary

#B23921

secondary

#66B9C9

accent

#CFEC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B23921

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

Preview Lab → · Contrast checker → · Palette generator →