#BB3428#BB3428

#BB3428 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.174 H 29.3°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#BB3428
RGB	rgb(187, 52, 40)
HSL	hsl(5, 65%, 45%)
HSV	hsv(5, 79%, 73%)
CMYK	cmyk(0%, 72.2%, 78.6%, 26.7%)
CIE-LAB	lab(43.03, 53.06, 38.88)
CIE-LCH	lch(43.03, 65.78, 36.23°)
OKLab	oklab(52.92% 0.1516 0.0849)
OKLCH	oklch(52.92% 0.174 29.3)
XYZ	xyz(22.1071, 13.1774, 3.3865)
Luminance	0.1317 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3428 #28AFBB

analogous

#BB2866 #BB3428 #BB7E28

triadic

#BB3428 #28BB34 #3428BB

tetradic

#BB3428 #66BB28 #28AFBB #7E28BB

square

#BB3428 #66BB28 #28AFBB #7E28BB

split-complementary

#BB3428 #28BB7E #2866BB

monochromatic

#561812 #89261D #BB3428 #D85448 #E3837B

Accessibility & contrast

On white

5.78

#BB3428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#BB3428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3428

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3428	#FFFFFF	#000000	##FFFFFF
##BB3428	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5325

Deuteranopia (green-blind)

#7E7022

Tritanopia (blue-blind)

#CE0033

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3428;
/* rgb */ color: rgb(187, 52, 40);
/* oklch */ color: oklch(52.9% 0.174 29.3);

Tailwind

colors: {
  custom: {
    50: '#d87563',
    500: '#bb3428',
    950: '#000000',
  },
}

SCSS

$custom: #bb3428;
$custom-light: #d87563;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3428",
  "rgb": {
    "r": 187,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 4.898,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52924,
    "c": 0.17374,
    "h": 29.3
  },
  "luminance": 0.13174
}

Semantic roles & 50–950 ramp

primary

#BB3428

secondary

#74C4CB

accent

#DAE840

background

#FEF7F5

surface

#FDEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #BB3428

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

Preview Lab → · Contrast checker → · Palette generator →