#BB5537#BB5537

#BB5537 is a mid, vivid red. Relative luminance 0.173; OKLCH L 57.2% C 0.139 H 37.1°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#BB5537
RGB	rgb(187, 85, 55)
HSL	hsl(14, 55%, 47%)
HSV	hsv(14, 71%, 73%)
CMYK	cmyk(0%, 54.5%, 70.6%, 26.7%)
CIE-LAB	lab(48.69, 39.10, 36.82)
CIE-LCH	lch(48.69, 53.71, 43.28°)
OKLab	oklab(57.24% 0.1111 0.084)
OKLCH	oklch(57.24% 0.139 37.1)
XYZ	xyz(24.4340, 17.3407, 5.6741)
Luminance	0.1734 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB5537 #379DBB

analogous

#BB375B #BB5537 #BB9737

triadic

#BB5537 #37BB55 #5537BB

tetradic

#BB5537 #5BBB37 #379DBB #9737BB

square

#BB5537 #5BBB37 #379DBB #9737BB

split-complementary

#BB5537 #37BB97 #375BBB

monochromatic

#5C2A1B #8C4029 #BB5537 #D0795F #DEA18E

Accessibility & contrast

On white

4.70

#BB5537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#BB5537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB5537

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB5537	#FFFFFF	#000000	##FFFFFF
##BB5537	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706634

Deuteranopia (green-blind)

#897C35

Tritanopia (blue-blind)

#CD404E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #bb5537;
/* rgb */ color: rgb(187, 85, 55);
/* oklch */ color: oklch(57.2% 0.139 37.1);

Tailwind

colors: {
  custom: {
    50: '#d6876f',
    500: '#bb5537',
    950: '#000000',
  },
}

SCSS

$custom: #bb5537;
$custom-light: #d6876f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb5537",
  "rgb": {
    "r": 187,
    "g": 85,
    "b": 55
  },
  "hsl": {
    "h": 13.636,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5724,
    "c": 0.13931,
    "h": 37.1
  },
  "luminance": 0.17338
}

Semantic roles & 50–950 ramp

primary

#BB5537

secondary

#85B9C9

accent

#BCDE4A

background

#FEF8F6

surface

#FCF0EC

border

#D5CBC7

text

#160B07

muted

#847C7A

Preview Lab

Preview with #BB5537

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

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