#B23A28#B23A28

#B23A28 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.159 H 31.3°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B23A28
RGB	rgb(178, 58, 40)
HSL	hsl(8, 63%, 43%)
HSV	hsv(8, 78%, 70%)
CMYK	cmyk(0%, 67.4%, 77.5%, 30.2%)
CIE-LAB	lab(42.23, 47.69, 37.53)
CIE-LCH	lch(42.23, 60.69, 38.20°)
OKLab	oklab(52.02% 0.1358 0.0827)
OKLCH	oklch(52.02% 0.159 31.3)
XYZ	xyz(20.2584, 12.6473, 3.3815)
Luminance	0.1264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23A28 #28A0B2

analogous

#B2285B #B23A28 #B27F28

triadic

#B23A28 #28B23A #3A28B2

tetradic

#B23A28 #5BB228 #28A0B2 #7F28B2

square

#B23A28 #5BB228 #28A0B2 #7F28B2

split-complementary

#B23A28 #28B27F #285BB2

monochromatic

#4E1912 #802A1D #B23A28 #D55643 #E08375

Accessibility & contrast

On white

5.95

#B23A28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B23A28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23A28

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23A28	#FFFFFF	#000000	##FFFFFF
##B23A28	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5325

Deuteranopia (green-blind)

#7A6D23

Tritanopia (blue-blind)

#C41537

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23a28;
/* rgb */ color: rgb(178, 58, 40);
/* oklch */ color: oklch(52.0% 0.159 31.3);

Tailwind

colors: {
  custom: {
    50: '#d17763',
    500: '#b23a28',
    950: '#000000',
  },
}

SCSS

$custom: #b23a28;
$custom-light: #d17763;
$custom-dark: #000000;

JSON

{
  "hex": "#b23a28",
  "rgb": {
    "r": 178,
    "g": 58,
    "b": 40
  },
  "hsl": {
    "h": 7.826,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52017,
    "c": 0.15899,
    "h": 31.3
  },
  "luminance": 0.12644
}

Semantic roles & 50–950 ramp

primary

#B23A28

secondary

#6FBCC7

accent

#D1E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B23A28

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

Preview Lab → · Contrast checker → · Palette generator →