#B22523#B22523

#B22523 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.9% C 0.177 H 27.1°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#B22523
RGB	rgb(178, 37, 35)
HSL	hsl(1, 67%, 42%)
HSV	hsv(1, 80%, 70%)
CMYK	cmyk(0%, 79.2%, 80.3%, 30.2%)
CIE-LAB	lab(39.43, 55.09, 37.41)
CIE-LCH	lch(39.43, 66.59, 34.18°)
OKLab	oklab(49.91% 0.158 0.0809)
OKLCH	oklch(49.91% 0.177 27.1)
XYZ	xyz(19.3274, 10.9126, 2.6785)
Luminance	0.1091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B22523 #23B0B2

analogous

#B22369 #B22523 #B26D23

triadic

#B22523 #23B225 #2523B2

tetradic

#B22523 #69B223 #23B0B2 #6D23B2

square

#B22523 #69B223 #23B0B2 #6D23B2

split-complementary

#B22523 #23B26D #2369B2

monochromatic

#4C100F #7F1A19 #B22523 #D83C3A #E26F6D

Accessibility & contrast

On white

6.60

#B22523 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#B22523 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22523

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B22523	#FFFFFF	#000000	##FFFFFF
##B22523	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524921

Deuteranopia (green-blind)

#74681C

Tritanopia (blue-blind)

#C40027

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b22523;
/* rgb */ color: rgb(178, 37, 35);
/* oklch */ color: oklch(49.9% 0.177 27.1);

Tailwind

colors: {
  custom: {
    50: '#d36d5f',
    500: '#b22523',
    950: '#000000',
  },
}

SCSS

$custom: #b22523;
$custom-light: #d36d5f;
$custom-dark: #000000;

JSON

{
  "hex": "#b22523",
  "rgb": {
    "r": 178,
    "g": 37,
    "b": 35
  },
  "hsl": {
    "h": 0.839,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49914,
    "c": 0.17746,
    "h": 27.1
  },
  "luminance": 0.10909
}

Semantic roles & 50–950 ramp

primary

#B22523

secondary

#68C7C9

accent

#E8EA3E

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B22523

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

Preview Lab → · Contrast checker → · Palette generator →