#B23321#B23321

#B23321 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.167 H 31.2°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B23321
RGB	rgb(178, 51, 33)
HSL	hsl(7, 69%, 41%)
HSV	hsv(7, 81%, 70%)
CMYK	cmyk(0%, 71.3%, 81.5%, 30.2%)
CIE-LAB	lab(41.13, 50.26, 40.17)
CIE-LCH	lch(41.13, 64.34, 38.64°)
OKLab	oklab(51.17% 0.1424 0.0863)
OKLCH	oklch(51.17% 0.167 31.2)
XYZ	xyz(19.8208, 11.9455, 2.7006)
Luminance	0.1194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23321 #21A0B2

analogous

#B22158 #B23321 #B27C21

triadic

#B23321 #21B233 #3321B2

tetradic

#B23321 #58B221 #21A0B2 #7C21B2

square

#B23321 #58B221 #21A0B2 #7C21B2

split-complementary

#B23321 #21B27C #2158B2

monochromatic

#4B150E #7E2417 #B23321 #DA4B36 #E3796A

Accessibility & contrast

On white

6.20

#B23321 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B23321 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23321

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23321	#FFFFFF	#000000	##FFFFFF
##B23321	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1E

Deuteranopia (green-blind)

#786B1B

Tritanopia (blue-blind)

#C40030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23321;
/* rgb */ color: rgb(178, 51, 33);
/* oklch */ color: oklch(51.2% 0.167 31.2);

Tailwind

colors: {
  custom: {
    50: '#d2735e',
    500: '#b23321',
    950: '#000000',
  },
}

SCSS

$custom: #b23321;
$custom-light: #d2735e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23321",
  "rgb": {
    "r": 178,
    "g": 51,
    "b": 33
  },
  "hsl": {
    "h": 7.448,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51173,
    "c": 0.16653,
    "h": 31.2
  },
  "luminance": 0.11942
}

Semantic roles & 50–950 ramp

primary

#B23321

secondary

#66BDC9

accent

#D6EC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B23321

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

Preview Lab → · Contrast checker → · Palette generator →