#BB3F28#BB3F28

#BB3F28 is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.1% C 0.164 H 32.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#BB3F28
RGB	rgb(187, 63, 40)
HSL	hsl(9, 65%, 45%)
HSV	hsv(9, 79%, 73%)
CMYK	cmyk(0%, 66.3%, 78.6%, 26.7%)
CIE-LAB	lab(44.63, 48.70, 40.52)
CIE-LCH	lch(44.63, 63.35, 39.76°)
OKLab	oklab(54.12% 0.138 0.0885)
OKLCH	oklch(54.12% 0.164 32.7)
XYZ	xyz(22.6566, 14.2763, 3.5697)
Luminance	0.1427 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3F28 #28A4BB

analogous

#BB285A #BB3F28 #BB8928

triadic

#BB3F28 #28BB3F #3F28BB

tetradic

#BB3F28 #5ABB28 #28A4BB #8928BB

square

#BB3F28 #5ABB28 #28A4BB #8928BB

split-complementary

#BB3F28 #28BB89 #285ABB

monochromatic

#561D12 #892E1D #BB3F28 #D85F48 #E38B7B

Accessibility & contrast

On white

5.45

#BB3F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#BB3F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3F28

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3F28	#FFFFFF	#000000	##FFFFFF
##BB3F28	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635824

Deuteranopia (green-blind)

#817423

Tritanopia (blue-blind)

#CE1A3B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #bb3f28;
/* rgb */ color: rgb(187, 63, 40);
/* oklch */ color: oklch(54.1% 0.164 32.7);

Tailwind

colors: {
  custom: {
    50: '#d87a64',
    500: '#bb3f28',
    950: '#000000',
  },
}

SCSS

$custom: #bb3f28;
$custom-light: #d87a64;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3f28",
  "rgb": {
    "r": 187,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 9.388,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.54121,
    "c": 0.16391,
    "h": 32.7
  },
  "luminance": 0.14273
}

Semantic roles & 50–950 ramp

primary

#BB3F28

secondary

#74BDCB

accent

#CEE840

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#160A05

muted

#847C7A

Preview Lab

Preview with #BB3F28

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

Preview Lab → · Contrast checker → · Palette generator →