#B33727#B33727

#B33727 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.163 H 30.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B33727
RGB	rgb(179, 55, 39)
HSL	hsl(7, 64%, 43%)
HSV	hsv(7, 78%, 70%)
CMYK	cmyk(0%, 69.3%, 78.2%, 29.8%)
CIE-LAB	lab(41.95, 49.23, 37.84)
CIE-LCH	lch(41.95, 62.09, 37.55°)
OKLab	oklab(51.84% 0.1403 0.083)
OKLCH	oklch(51.84% 0.163 30.6)
XYZ	xyz(20.3251, 12.4656, 3.2549)
Luminance	0.1246 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33727 #27A3B3

analogous

#B3275D #B33727 #B37D27

triadic

#B33727 #27B337 #3727B3

tetradic

#B33727 #5DB327 #27A3B3 #7D27B3

square

#B33727 #5DB327 #27A3B3 #7D27B3

split-complementary

#B33727 #27B37D #275DB3

monochromatic

#4E1811 #81281C #B33727 #D65241 #E18074

Accessibility & contrast

On white

6.01

#B33727 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B33727 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33727

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33727	#FFFFFF	#000000	##FFFFFF
##B33727	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5224

Deuteranopia (green-blind)

#7A6D22

Tritanopia (blue-blind)

#C50B34

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b33727;
/* rgb */ color: rgb(179, 55, 39);
/* oklch */ color: oklch(51.8% 0.163 30.6);

Tailwind

colors: {
  custom: {
    50: '#d27562',
    500: '#b33727',
    950: '#000000',
  },
}

SCSS

$custom: #b33727;
$custom-light: #d27562;
$custom-dark: #000000;

JSON

{
  "hex": "#b33727",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 39
  },
  "hsl": {
    "h": 6.857,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51838,
    "c": 0.16299,
    "h": 30.6
  },
  "luminance": 0.12463
}

Semantic roles & 50–950 ramp

primary

#B33727

secondary

#6EBEC8

accent

#D4E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33727

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

Preview Lab → · Contrast checker → · Palette generator →