#B23F28#B23F28

#B23F28 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.6% C 0.154 H 33.2°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B23F28
RGB	rgb(178, 63, 40)
HSL	hsl(10, 63%, 43%)
HSV	hsv(10, 78%, 70%)
CMYK	cmyk(0%, 64.6%, 77.5%, 30.2%)
CIE-LAB	lab(43.03, 45.54, 38.36)
CIE-LCH	lch(43.03, 59.54, 40.11°)
OKLab	oklab(52.62% 0.1291 0.0845)
OKLCH	oklch(52.62% 0.154 33.2)
XYZ	xyz(20.5229, 13.1761, 3.4697)
Luminance	0.1317 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23F28 #289BB2

analogous

#B22856 #B23F28 #B28428

triadic

#B23F28 #28B23F #3F28B2

tetradic

#B23F28 #56B228 #289BB2 #8428B2

square

#B23F28 #56B228 #289BB2 #8428B2

split-complementary

#B23F28 #28B284 #2856B2

monochromatic

#4E1C12 #802D1D #B23F28 #D55B43 #E08675

Accessibility & contrast

On white

5.78

#B23F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B23F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23F28

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23F28	#FFFFFF	#000000	##FFFFFF
##B23F28	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605625

Deuteranopia (green-blind)

#7C6F24

Tritanopia (blue-blind)

#C4203A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b23f28;
/* rgb */ color: rgb(178, 63, 40);
/* oklch */ color: oklch(52.6% 0.154 33.2);

Tailwind

colors: {
  custom: {
    50: '#d17963',
    500: '#b23f28',
    950: '#000000',
  },
}

SCSS

$custom: #b23f28;
$custom-light: #d17963;
$custom-dark: #000000;

JSON

{
  "hex": "#b23f28",
  "rgb": {
    "r": 178,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 10,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52619,
    "c": 0.15429,
    "h": 33.2
  },
  "luminance": 0.13173
}

Semantic roles & 50–950 ramp

primary

#B23F28

secondary

#6FB8C7

accent

#CBE641

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B23F28

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

Preview Lab → · Contrast checker → · Palette generator →