#B23E2B#B23E2B

#B23E2B is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.155 H 31.8°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B23E2B
RGB	rgb(178, 62, 43)
HSL	hsl(8, 61%, 43%)
HSV	hsv(8, 76%, 70%)
CMYK	cmyk(0%, 65.2%, 75.8%, 30.2%)
CIE-LAB	lab(42.89, 46.10, 36.58)
CIE-LCH	lch(42.89, 58.85, 38.44°)
OKLab	oklab(52.53% 0.1314 0.0814)
OKLCH	oklch(52.53% 0.155 31.8)
XYZ	xyz(20.5210, 13.0876, 3.7306)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23E2B #2B9FB2

analogous

#B22B5C #B23E2B #B2812B

triadic

#B23E2B #2BB23E #3E2BB2

tetradic

#B23E2B #5CB22B #2B9FB2 #812BB2

square

#B23E2B #5CB22B #2B9FB2 #812BB2

split-complementary

#B23E2B #2BB281 #2B5CB2

monochromatic

#4F1C13 #812D1F #B23E2B #D35B48 #DF8779

Accessibility & contrast

On white

5.81

#B23E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B23E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23E2B

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23E2B	#FFFFFF	#000000	##FFFFFF
##B23E2B	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5528

Deuteranopia (green-blind)

#7B6F27

Tritanopia (blue-blind)

#C41F3A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b23e2b;
/* rgb */ color: rgb(178, 62, 43);
/* oklch */ color: oklch(52.5% 0.155 31.8);

Tailwind

colors: {
  custom: {
    50: '#d17965',
    500: '#b23e2b',
    950: '#000000',
  },
}

SCSS

$custom: #b23e2b;
$custom-light: #d17965;
$custom-dark: #000000;

JSON

{
  "hex": "#b23e2b",
  "rgb": {
    "r": 178,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 8.444,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5253,
    "c": 0.15461,
    "h": 31.8
  },
  "luminance": 0.13085
}

Semantic roles & 50–950 ramp

primary

#B23E2B

secondary

#72BBC7

accent

#CEE444

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23E2B

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

Preview Lab → · Contrast checker → · Palette generator →