#B23631#B23631

#B23631 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.161 H 26.7°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B23631
RGB	rgb(178, 54, 49)
HSL	hsl(2, 57%, 45%)
HSV	hsv(2, 72%, 70%)
CMYK	cmyk(0%, 69.7%, 72.5%, 30.2%)
CIE-LAB	lab(41.73, 49.71, 31.86)
CIE-LCH	lch(41.73, 59.04, 32.66°)
OKLab	oklab(51.68% 0.144 0.0725)
OKLCH	oklch(51.68% 0.161 26.7)
XYZ	xyz(20.2359, 12.3281, 4.2192)
Luminance	0.1232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23631 #31ADB2

analogous

#B2316C #B23631 #B27731

triadic

#B23631 #31B236 #3631B2

tetradic

#B23631 #6CB231 #31ADB2 #7731B2

square

#B23631 #6CB231 #31ADB2 #7731B2

split-complementary

#B23631 #31B277 #316CB2

monochromatic

#521917 #822724 #B23631 #CF5651 #DC8581

Accessibility & contrast

On white

6.06

#B23631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B23631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23631

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23631	#FFFFFF	#000000	##FFFFFF
##B23631	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#786C2D

Tritanopia (blue-blind)

#C40D36

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b23631;
/* rgb */ color: rgb(178, 54, 49);
/* oklch */ color: oklch(51.7% 0.161 26.7);

Tailwind

colors: {
  custom: {
    50: '#d17569',
    500: '#b23631',
    950: '#000000',
  },
}

SCSS

$custom: #b23631;
$custom-light: #d17569;
$custom-dark: #000000;

JSON

{
  "hex": "#b23631",
  "rgb": {
    "r": 178,
    "g": 54,
    "b": 49
  },
  "hsl": {
    "h": 2.326,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51681,
    "c": 0.16122,
    "h": 26.7
  },
  "luminance": 0.12325
}

Semantic roles & 50–950 ramp

primary

#B23631

secondary

#79C2C5

accent

#DAE048

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23631

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

Preview Lab → · Contrast checker → · Palette generator →