#B23830#B23830

#B23830 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.159 H 27.8°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B23830
RGB	rgb(178, 56, 48)
HSL	hsl(4, 58%, 44%)
HSV	hsv(4, 73%, 70%)
CMYK	cmyk(0%, 68.5%, 73%, 30.2%)
CIE-LAB	lab(42.02, 48.86, 32.77)
CIE-LCH	lch(42.02, 58.83, 33.85°)
OKLab	oklab(51.89% 0.1411 0.0743)
OKLCH	oklch(51.89% 0.159 27.8)
XYZ	xyz(20.3100, 12.5097, 4.1409)
Luminance	0.1251 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23830 #30AAB2

analogous

#B23069 #B23830 #B27930

triadic

#B23830 #30B238 #3830B2

tetradic

#B23830 #69B230 #30AAB2 #7930B2

square

#B23830 #69B230 #30AAB2 #7930B2

split-complementary

#B23830 #30B279 #3069B2

monochromatic

#521A16 #822923 #B23830 #D05750 #DD8580

Accessibility & contrast

On white

6.00

#B23830 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B23830 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23830

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23830	#FFFFFF	#000000	##FFFFFF
##B23830	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522E

Deuteranopia (green-blind)

#796D2C

Tritanopia (blue-blind)

#C41237

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b23830;
/* rgb */ color: rgb(178, 56, 48);
/* oklch */ color: oklch(51.9% 0.159 27.8);

Tailwind

colors: {
  custom: {
    50: '#d17669',
    500: '#b23830',
    950: '#000000',
  },
}

SCSS

$custom: #b23830;
$custom-light: #d17669;
$custom-dark: #000000;

JSON

{
  "hex": "#b23830",
  "rgb": {
    "r": 178,
    "g": 56,
    "b": 48
  },
  "hsl": {
    "h": 3.692,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51888,
    "c": 0.15946,
    "h": 27.8
  },
  "luminance": 0.12507
}

Semantic roles & 50–950 ramp

primary

#B23830

secondary

#78C1C6

accent

#D7E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23830

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

Preview Lab → · Contrast checker → · Palette generator →