#B23B28#B23B28

#B23B28 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.158 H 31.7°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B23B28
RGB	rgb(178, 59, 40)
HSL	hsl(8, 63%, 43%)
HSV	hsv(8, 78%, 70%)
CMYK	cmyk(0%, 66.9%, 77.5%, 30.2%)
CIE-LAB	lab(42.38, 47.27, 37.69)
CIE-LCH	lch(42.38, 60.46, 38.57°)
OKLab	oklab(52.13% 0.1345 0.083)
OKLCH	oklch(52.13% 0.158 31.7)
XYZ	xyz(20.3093, 12.7491, 3.3985)
Luminance	0.1275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23B28 #289FB2

analogous

#B2285A #B23B28 #B28028

triadic

#B23B28 #28B23B #3B28B2

tetradic

#B23B28 #5AB228 #289FB2 #8028B2

square

#B23B28 #5AB228 #289FB2 #8028B2

split-complementary

#B23B28 #28B280 #285AB2

monochromatic

#4E1A12 #802A1D #B23B28 #D55743 #E08375

Accessibility & contrast

On white

5.92

#B23B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B23B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23B28

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23B28	#FFFFFF	#000000	##FFFFFF
##B23B28	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5325

Deuteranopia (green-blind)

#7A6E23

Tritanopia (blue-blind)

#C41837

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23b28;
/* rgb */ color: rgb(178, 59, 40);
/* oklch */ color: oklch(52.1% 0.158 31.7);

Tailwind

colors: {
  custom: {
    50: '#d17763',
    500: '#b23b28',
    950: '#000000',
  },
}

SCSS

$custom: #b23b28;
$custom-light: #d17763;
$custom-dark: #000000;

JSON

{
  "hex": "#b23b28",
  "rgb": {
    "r": 178,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 8.261,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52134,
    "c": 0.15806,
    "h": 31.7
  },
  "luminance": 0.12746
}

Semantic roles & 50–950 ramp

primary

#B23B28

secondary

#6FBBC7

accent

#D0E641

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B23B28

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

Preview Lab → · Contrast checker → · Palette generator →