#B23A30#B23A30

#B23A30 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.158 H 28.5°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B23A30
RGB	rgb(178, 58, 48)
HSL	hsl(5, 58%, 44%)
HSV	hsv(5, 73%, 70%)
CMYK	cmyk(0%, 67.4%, 73%, 30.2%)
CIE-LAB	lab(42.32, 48.03, 33.11)
CIE-LCH	lch(42.32, 58.34, 34.58°)
OKLab	oklab(52.12% 0.1385 0.0751)
OKLCH	oklch(52.12% 0.158 28.5)
XYZ	xyz(20.4089, 12.7075, 4.1739)
Luminance	0.1270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23A30 #30A8B2

analogous

#B23067 #B23A30 #B27B30

triadic

#B23A30 #30B23A #3A30B2

tetradic

#B23A30 #67B230 #30A8B2 #7B30B2

square

#B23A30 #67B230 #30A8B2 #7B30B2

split-complementary

#B23A30 #30B27B #3067B2

monochromatic

#521B16 #822A23 #B23A30 #D05950 #DD8780

Accessibility & contrast

On white

5.93

#B23A30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B23A30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23A30

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23A30	#FFFFFF	#000000	##FFFFFF
##B23A30	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532E

Deuteranopia (green-blind)

#7A6E2C

Tritanopia (blue-blind)

#C41739

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23a30;
/* rgb */ color: rgb(178, 58, 48);
/* oklch */ color: oklch(52.1% 0.158 28.5);

Tailwind

colors: {
  custom: {
    50: '#d17769',
    500: '#b23a30',
    950: '#000000',
  },
}

SCSS

$custom: #b23a30;
$custom-light: #d17769;
$custom-dark: #000000;

JSON

{
  "hex": "#b23a30",
  "rgb": {
    "r": 178,
    "g": 58,
    "b": 48
  },
  "hsl": {
    "h": 4.615,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52116,
    "c": 0.15753,
    "h": 28.5
  },
  "luminance": 0.12704
}

Semantic roles & 50–950 ramp

primary

#B23A30

secondary

#78C0C6

accent

#D5E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23A30

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

Preview Lab → · Contrast checker → · Palette generator →