#B33D25#B33D25

#B33D25 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.158 H 33.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B33D25
RGB	rgb(179, 61, 37)
HSL	hsl(10, 66%, 42%)
HSV	hsv(10, 79%, 70%)
CMYK	cmyk(0%, 65.9%, 79.3%, 29.8%)
CIE-LAB	lab(42.85, 46.65, 39.84)
CIE-LCH	lch(42.85, 61.35, 40.49°)
OKLab	oklab(52.51% 0.1319 0.0867)
OKLCH	oklch(52.51% 0.158 33.3)
XYZ	xyz(20.5954, 13.0578, 3.1858)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D25 #259BB3

analogous

#B32554 #B33D25 #B38425

triadic

#B33D25 #25B33D #3D25B3

tetradic

#B33D25 #54B325 #259BB3 #8425B3

square

#B33D25 #54B325 #259BB3 #8425B3

split-complementary

#B33D25 #25B384 #2554B3

monochromatic

#4E1A10 #802C1B #B33D25 #D7583E #E28471

Accessibility & contrast

On white

5.82

#B33D25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B33D25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D25

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D25	#FFFFFF	#000000	##FFFFFF
##B33D25	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5521

Deuteranopia (green-blind)

#7C6F20

Tritanopia (blue-blind)

#C51B38

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33d25;
/* rgb */ color: rgb(179, 61, 37);
/* oklch */ color: oklch(52.5% 0.158 33.3);

Tailwind

colors: {
  custom: {
    50: '#d27861',
    500: '#b33d25',
    950: '#000000',
  },
}

SCSS

$custom: #b33d25;
$custom-light: #d27861;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d25",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 37
  },
  "hsl": {
    "h": 10.141,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.5251,
    "c": 0.15785,
    "h": 33.3
  },
  "luminance": 0.13055
}

Semantic roles & 50–950 ramp

primary

#B33D25

secondary

#6BB9C8

accent

#CCE93F

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33D25

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

Preview Lab → · Contrast checker → · Palette generator →