#B23039#B23039

#B23039 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.166 H 21.7°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B23039
RGB	rgb(178, 48, 57)
HSL	hsl(356, 58%, 44%)
HSV	hsv(356, 73%, 70%)
CMYK	cmyk(0%, 73%, 68%, 30.2%)
CIE-LAB	lab(41.02, 52.40, 26.21)
CIE-LCH	lch(41.02, 58.59, 26.58°)
OKLab	oklab(51.19% 0.1542 0.0614)
OKLCH	oklch(51.19% 0.166 21.7)
XYZ	xyz(20.1578, 11.8773, 5.1012)
Luminance	0.1187 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23039 #30B2A9

analogous

#B2307A #B23039 #B26830

triadic

#B23039 #39B230 #3039B2

tetradic

#B23039 #7AB230 #30B2A9 #6830B2

square

#B23039 #7AB230 #30B2A9 #6830B2

split-complementary

#B23039 #30B268 #307AB2

monochromatic

#52161A #82232A #B23039 #D05058 #DD8086

Accessibility & contrast

On white

6.22

#B23039 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B23039 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23039

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23039	#FFFFFF	#000000	##FFFFFF
##B23039	1.00	6.22	3.37	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F38

Deuteranopia (green-blind)

#766B35

Tritanopia (blue-blind)

#C40035

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23039;
/* rgb */ color: rgb(178, 48, 57);
/* oklch */ color: oklch(51.2% 0.166 21.7);

Tailwind

colors: {
  custom: {
    50: '#d1726f',
    500: '#b23039',
    950: '#000000',
  },
}

SCSS

$custom: #b23039;
$custom-light: #d1726f;
$custom-dark: #000000;

JSON

{
  "hex": "#b23039",
  "rgb": {
    "r": 178,
    "g": 48,
    "b": 57
  },
  "hsl": {
    "h": 355.846,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51187,
    "c": 0.16599,
    "h": 21.7
  },
  "luminance": 0.11874
}

Semantic roles & 50–950 ramp

primary

#B23039

secondary

#78C6C0

accent

#E1D647

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23039

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

Preview Lab → · Contrast checker → · Palette generator →