#B23339#B23339

#B23339 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.163 H 22.5°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B23339
RGB	rgb(178, 51, 57)
HSL	hsl(357, 55%, 45%)
HSV	hsv(357, 71%, 70%)
CMYK	cmyk(0%, 71.3%, 68%, 30.2%)
CIE-LAB	lab(41.42, 51.28, 26.71)
CIE-LCH	lch(41.42, 57.82, 27.51°)
OKLab	oklab(51.49% 0.1507 0.0625)
OKLCH	oklch(51.49% 0.163 22.5)
XYZ	xyz(20.2846, 12.1310, 5.1435)
Luminance	0.1213 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23339 #33B2AC

analogous

#B23379 #B23339 #B26C33

triadic

#B23339 #39B233 #3339B2

tetradic

#B23339 #79B233 #33B2AC #6C33B2

square

#B23339 #79B233 #33B2AC #6C33B2

split-complementary

#B23339 #33B26C #3379B2

monochromatic

#53181B #82252A #B23339 #CE545A #DC8488

Accessibility & contrast

On white

6.13

#B23339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B23339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23339

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23339	#FFFFFF	#000000	##FFFFFF
##B23339	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575038

Deuteranopia (green-blind)

#766C35

Tritanopia (blue-blind)

#C40636

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b23339;
/* rgb */ color: rgb(178, 51, 57);
/* oklch */ color: oklch(51.5% 0.163 22.5);

Tailwind

colors: {
  custom: {
    50: '#d1746f',
    500: '#b23339',
    950: '#000000',
  },
}

SCSS

$custom: #b23339;
$custom-light: #d1746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b23339",
  "rgb": {
    "r": 178,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.165,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51487,
    "c": 0.16312,
    "h": 22.5
  },
  "luminance": 0.12128
}

Semantic roles & 50–950 ramp

primary

#B23339

secondary

#7CC5C2

accent

#DFD849

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23339

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

Preview Lab → · Contrast checker → · Palette generator →