#B23F33#B23F33

#B23F33 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.152 H 29.1°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B23F33
RGB	rgb(178, 63, 51)
HSL	hsl(6, 55%, 45%)
HSV	hsv(6, 71%, 70%)
CMYK	cmyk(0%, 64.6%, 71.3%, 30.2%)
CIE-LAB	lab(43.16, 46.03, 32.34)
CIE-LCH	lch(43.16, 56.25, 35.09°)
OKLab	oklab(52.76% 0.1328 0.074)
OKLCH	oklch(52.76% 0.152 29.1)
XYZ	xyz(20.7373, 13.2619, 4.5992)
Luminance	0.1326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23F33 #33A6B2

analogous

#B23367 #B23F33 #B27E33

triadic

#B23F33 #33B23F #3F33B2

tetradic

#B23F33 #67B233 #33A6B2 #7E33B2

square

#B23F33 #67B233 #33A6B2 #7E33B2

split-complementary

#B23F33 #33B27E #3367B2

monochromatic

#531D18 #822E25 #B23F33 #CE6054 #DC8C84

Accessibility & contrast

On white

5.75

#B23F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B23F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23F33

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23F33	#FFFFFF	#000000	##FFFFFF
##B23F33	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5631

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C4223D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b23f33;
/* rgb */ color: rgb(178, 63, 51);
/* oklch */ color: oklch(52.8% 0.152 29.1);

Tailwind

colors: {
  custom: {
    50: '#d07a6b',
    500: '#b23f33',
    950: '#000000',
  },
}

SCSS

$custom: #b23f33;
$custom-light: #d07a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b23f33",
  "rgb": {
    "r": 178,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 5.669,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52756,
    "c": 0.15202,
    "h": 29.1
  },
  "luminance": 0.13259
}

Semantic roles & 50–950 ramp

primary

#B23F33

secondary

#7CBEC5

accent

#D1DF49

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23F33

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

Preview Lab → · Contrast checker → · Palette generator →