#BB3631#BB3631

#BB3631 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.2% C 0.171 H 26.9°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#BB3631
RGB	rgb(187, 54, 49)
HSL	hsl(2, 58%, 46%)
HSV	hsv(2, 74%, 73%)
CMYK	cmyk(0%, 71.1%, 73.8%, 26.7%)
CIE-LAB	lab(43.40, 52.66, 34.21)
CIE-LCH	lch(43.40, 62.80, 33.01°)
OKLab	oklab(53.24% 0.1522 0.0771)
OKLCH	oklch(53.24% 0.171 26.9)
XYZ	xyz(22.3696, 13.4282, 4.3192)
Luminance	0.1343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3631 #31B6BB

analogous

#BB3171 #BB3631 #BB7B31

triadic

#BB3631 #31BB36 #3631BB

tetradic

#BB3631 #71BB31 #31B6BB #7B31BB

square

#BB3631 #71BB31 #31B6BB #7B31BB

split-complementary

#BB3631 #31BB7B #3171BB

monochromatic

#5A1A18 #8B2824 #BB3631 #D35B56 #E08A87

Accessibility & contrast

On white

5.70

#BB3631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#BB3631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3631

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3631	#FFFFFF	#000000	##FFFFFF
##BB3631	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542F

Deuteranopia (green-blind)

#7E712C

Tritanopia (blue-blind)

#CE0036

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3631;
/* rgb */ color: rgb(187, 54, 49);
/* oklch */ color: oklch(53.2% 0.171 26.9);

Tailwind

colors: {
  custom: {
    50: '#d87669',
    500: '#bb3631',
    950: '#000000',
  },
}

SCSS

$custom: #bb3631;
$custom-light: #d87669;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3631",
  "rgb": {
    "r": 187,
    "g": 54,
    "b": 49
  },
  "hsl": {
    "h": 2.174,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53235,
    "c": 0.17062,
    "h": 26.9
  },
  "luminance": 0.13425
}

Semantic roles & 50–950 ramp

primary

#BB3631

secondary

#7FC6C9

accent

#DCE246

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3631

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

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