#B33928#B33928

#B33928 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.1% C 0.161 H 30.9°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B33928
RGB	rgb(179, 57, 40)
HSL	hsl(7, 63%, 43%)
HSV	hsv(7, 78%, 70%)
CMYK	cmyk(0%, 68.2%, 77.7%, 29.8%)
CIE-LAB	lab(42.26, 48.45, 37.61)
CIE-LCH	lch(42.26, 61.34, 37.82°)
OKLab	oklab(52.07% 0.1381 0.0828)
OKLCH	oklch(52.07% 0.161 30.9)
XYZ	xyz(20.4388, 12.6662, 3.3757)
Luminance	0.1266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33928 #28A2B3

analogous

#B3285D #B33928 #B37E28

triadic

#B33928 #28B339 #3928B3

tetradic

#B33928 #5DB328 #28A2B3 #7E28B3

square

#B33928 #5DB328 #28A2B3 #7E28B3

split-complementary

#B33928 #28B37E #285DB3

monochromatic

#4F1912 #81291D #B33928 #D55543 #E08275

Accessibility & contrast

On white

5.94

#B33928 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B33928 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33928

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33928	#FFFFFF	#000000	##FFFFFF
##B33928	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5325

Deuteranopia (green-blind)

#7A6E23

Tritanopia (blue-blind)

#C51236

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33928;
/* rgb */ color: rgb(179, 57, 40);
/* oklch */ color: oklch(52.1% 0.161 30.9);

Tailwind

colors: {
  custom: {
    50: '#d27663',
    500: '#b33928',
    950: '#000000',
  },
}

SCSS

$custom: #b33928;
$custom-light: #d27663;
$custom-dark: #000000;

JSON

{
  "hex": "#b33928",
  "rgb": {
    "r": 179,
    "g": 57,
    "b": 40
  },
  "hsl": {
    "h": 7.338,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.52073,
    "c": 0.16098,
    "h": 30.9
  },
  "luminance": 0.12663
}

Semantic roles & 50–950 ramp

primary

#B33928

secondary

#6FBDC8

accent

#D2E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33928

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

Preview Lab → · Contrast checker → · Palette generator →