#BC3731#BC3731

#BC3731 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.5% C 0.171 H 27.2°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#BC3731
RGB	rgb(188, 55, 49)
HSL	hsl(3, 59%, 46%)
HSV	hsv(3, 74%, 74%)
CMYK	cmyk(0%, 70.7%, 73.9%, 26.3%)
CIE-LAB	lab(43.73, 52.61, 34.62)
CIE-LCH	lch(43.73, 62.98, 33.35°)
OKLab	oklab(53.51% 0.1519 0.078)
OKLCH	oklch(53.51% 0.171 27.2)
XYZ	xyz(22.6622, 13.6489, 4.3464)
Luminance	0.1364 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BC3731 #31B6BC

analogous

#BC3171 #BC3731 #BC7D31

triadic

#BC3731 #31BC37 #3731BC

tetradic

#BC3731 #71BC31 #31B6BC #7D31BC

square

#BC3731 #71BC31 #31B6BC #7D31BC

split-complementary

#BC3731 #31BC7D #3171BC

monochromatic

#5B1B18 #8B2924 #BC3731 #D35C57 #E08B88

Accessibility & contrast

On white

5.63

#BC3731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#BC3731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BC3731

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BC3731	#FFFFFF	#000000	##FFFFFF
##BC3731	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D552F

Deuteranopia (green-blind)

#7F722C

Tritanopia (blue-blind)

#CF0237

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bc3731;
/* rgb */ color: rgb(188, 55, 49);
/* oklch */ color: oklch(53.5% 0.171 27.2);

Tailwind

colors: {
  custom: {
    50: '#d97769',
    500: '#bc3731',
    950: '#000000',
  },
}

SCSS

$custom: #bc3731;
$custom-light: #d97769;
$custom-dark: #000000;

JSON

{
  "hex": "#bc3731",
  "rgb": {
    "r": 188,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.59,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.5351,
    "c": 0.17074,
    "h": 27.2
  },
  "luminance": 0.13645
}

Semantic roles & 50–950 ramp

primary

#BC3731

secondary

#7FC6CA

accent

#DBE246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BC3731

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

Preview Lab → · Contrast checker → · Palette generator →