#B33F25#B33F25

#B33F25 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.156 H 34.1°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B33F25
RGB	rgb(179, 63, 37)
HSL	hsl(11, 66%, 42%)
HSV	hsv(11, 79%, 70%)
CMYK	cmyk(0%, 64.8%, 79.3%, 29.8%)
CIE-LAB	lab(43.18, 45.78, 40.16)
CIE-LCH	lch(43.18, 60.90, 41.26°)
OKLab	oklab(52.75% 0.1292 0.0875)
OKLCH	oklch(52.75% 0.156 34.1)
XYZ	xyz(20.7041, 13.2753, 3.2221)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F25 #2599B3

analogous

#B32552 #B33F25 #B38625

triadic

#B33F25 #25B33F #3F25B3

tetradic

#B33F25 #52B325 #2599B3 #8625B3

square

#B33F25 #52B325 #2599B3 #8625B3

split-complementary

#B33F25 #25B386 #2552B3

monochromatic

#4E1B10 #802D1B #B33F25 #D75A3E #E28571

Accessibility & contrast

On white

5.75

#B33F25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33F25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F25

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F25	#FFFFFF	#000000	##FFFFFF
##B33F25	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)

#605621

Deuteranopia (green-blind)

#7D7020

Tritanopia (blue-blind)

#C51F3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f25;
/* rgb */ color: rgb(179, 63, 37);
/* oklch */ color: oklch(52.8% 0.156 34.1);

Tailwind

colors: {
  custom: {
    50: '#d27a61',
    500: '#b33f25',
    950: '#000000',
  },
}

SCSS

$custom: #b33f25;
$custom-light: #d27a61;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f25",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 37
  },
  "hsl": {
    "h": 10.986,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.52754,
    "c": 0.156,
    "h": 34.1
  },
  "luminance": 0.13272
}

Semantic roles & 50–950 ramp

primary

#B33F25

secondary

#6BB7C8

accent

#CAE93F

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33F25

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

Preview Lab → · Contrast checker → · Palette generator →