#B23638#B23638

#B23638 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.160 H 23.9°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B23638
RGB	rgb(178, 54, 56)
HSL	hsl(359, 53%, 45%)
HSV	hsv(359, 70%, 70%)
CMYK	cmyk(0%, 69.7%, 68.5%, 30.2%)
CIE-LAB	lab(41.83, 50.06, 27.81)
CIE-LCH	lch(41.83, 57.27, 29.05°)
OKLab	oklab(51.79% 0.1466 0.0649)
OKLCH	oklch(51.79% 0.16 23.9)
XYZ	xyz(20.3952, 12.3918, 5.0585)
Luminance	0.1239 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23638 #36B2B0

analogous

#B23676 #B23638 #B27236

triadic

#B23638 #38B236 #3638B2

tetradic

#B23638 #76B236 #36B2B0 #7236B2

square

#B23638 #76B236 #36B2B0 #7236B2

split-complementary

#B23638 #36B272 #3676B2

monochromatic

#541A1A #832829 #B23638 #CD595B #DB8889

Accessibility & contrast

On white

6.04

#B23638 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B23638 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23638

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23638	#FFFFFF	#000000	##FFFFFF
##B23638	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585237

Deuteranopia (green-blind)

#786C34

Tritanopia (blue-blind)

#C41038

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23638;
/* rgb */ color: rgb(178, 54, 56);
/* oklch */ color: oklch(51.8% 0.160 23.9);

Tailwind

colors: {
  custom: {
    50: '#d0756e',
    500: '#b23638',
    950: '#000000',
  },
}

SCSS

$custom: #b23638;
$custom-light: #d0756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23638",
  "rgb": {
    "r": 178,
    "g": 54,
    "b": 56
  },
  "hsl": {
    "h": 359.032,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51787,
    "c": 0.16028,
    "h": 23.9
  },
  "luminance": 0.12389
}

Semantic roles & 50–950 ramp

primary

#B23638

secondary

#7FC5C4

accent

#DDDA4B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23638

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

Preview Lab → · Contrast checker → · Palette generator →