#B33523#B33523

#B33523 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.165 H 31.2°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#B33523
RGB	rgb(179, 53, 35)
HSL	hsl(8, 67%, 42%)
HSV	hsv(8, 80%, 70%)
CMYK	cmyk(0%, 70.4%, 80.4%, 29.8%)
CIE-LAB	lab(41.62, 49.88, 39.66)
CIE-LCH	lch(41.62, 63.73, 38.49°)
OKLab	oklab(51.58% 0.1415 0.0857)
OKLCH	oklch(51.58% 0.165 31.2)
XYZ	xyz(20.1692, 12.2543, 2.8931)
Luminance	0.1225 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33523 #23A1B3

analogous

#B32359 #B33523 #B37D23

triadic

#B33523 #23B335 #3523B3

tetradic

#B33523 #59B323 #23A1B3 #7D23B3

square

#B33523 #59B323 #23A1B3 #7D23B3

split-complementary

#B33523 #23B37D #2359B3

monochromatic

#4D170F #802619 #B33523 #D94E3B #E37C6E

Accessibility & contrast

On white

6.09

#B33523 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B33523 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33523

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33523	#FFFFFF	#000000	##FFFFFF
##B33523	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5120

Deuteranopia (green-blind)

#796C1D

Tritanopia (blue-blind)

#C50132

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b33523;
/* rgb */ color: rgb(179, 53, 35);
/* oklch */ color: oklch(51.6% 0.165 31.2);

Tailwind

colors: {
  custom: {
    50: '#d37460',
    500: '#b33523',
    950: '#000000',
  },
}

SCSS

$custom: #b33523;
$custom-light: #d37460;
$custom-dark: #000000;

JSON

{
  "hex": "#b33523",
  "rgb": {
    "r": 179,
    "g": 53,
    "b": 35
  },
  "hsl": {
    "h": 7.5,
    "s": 67.29,
    "l": 41.961
  },
  "oklch": {
    "l": 0.51579,
    "c": 0.16548,
    "h": 31.2
  },
  "luminance": 0.12251
}

Semantic roles & 50–950 ramp

primary

#B33523

secondary

#69BDC9

accent

#D5EA3E

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B33523

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

Preview Lab → · Contrast checker → · Palette generator →