#BB3748#BB3748

#BB3748 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.7% C 0.168 H 17.7°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#BB3748
RGB	rgb(187, 55, 72)
HSL	hsl(352, 55%, 47%)
HSV	hsv(352, 71%, 73%)
CMYK	cmyk(0%, 70.6%, 61.5%, 26.7%)
CIE-LAB	lab(43.90, 53.54, 21.02)
CIE-LCH	lch(43.90, 57.51, 21.44°)
OKLab	oklab(53.72% 0.1597 0.051)
OKLCH	oklch(53.72% 0.168 17.7)
XYZ	xyz(23.0317, 13.7683, 7.5744)
Luminance	0.1376 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3748 #37BBAA

analogous

#BB378A #BB3748 #BB6837

triadic

#BB3748 #48BB37 #3748BB

tetradic

#BB3748 #8ABB37 #37BBAA #6837BB

square

#BB3748 #8ABB37 #37BBAA #6837BB

split-complementary

#BB3748 #37BB68 #378ABB

monochromatic

#5C1B24 #8C2936 #BB3748 #D05F6E #DE8E99

Accessibility & contrast

On white

5.60

#BB3748 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#BB3748 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3748

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3748	#FFFFFF	#000000	##FFFFFF
##BB3748	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5648

Deuteranopia (green-blind)

#7C7244

Tritanopia (blue-blind)

#CD123E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3748;
/* rgb */ color: rgb(187, 55, 72);
/* oklch */ color: oklch(53.7% 0.168 17.7);

Tailwind

colors: {
  custom: {
    50: '#d6777a',
    500: '#bb3748',
    950: '#000000',
  },
}

SCSS

$custom: #bb3748;
$custom-light: #d6777a;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3748",
  "rgb": {
    "r": 187,
    "g": 55,
    "b": 72
  },
  "hsl": {
    "h": 352.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53721,
    "c": 0.16763,
    "h": 17.7
  },
  "luminance": 0.13765
}

Semantic roles & 50–950 ramp

primary

#BB3748

secondary

#85C9C0

accent

#DECB4A

background

#FEF7F7

surface

#FCEEED

border

#D5C9C8

text

#160909

muted

#847B7B

Preview Lab

Preview with #BB3748

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

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