#BC3742#BC3742

#BC3742 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.169 H 20.5°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#BC3742
RGB	rgb(188, 55, 66)
HSL	hsl(355, 55%, 48%)
HSV	hsv(355, 71%, 74%)
CMYK	cmyk(0%, 70.7%, 64.9%, 26.3%)
CIE-LAB	lab(43.97, 53.48, 24.82)
CIE-LCH	lch(43.97, 58.96, 24.90°)
OKLab	oklab(53.78% 0.1582 0.0591)
OKLCH	oklch(53.78% 0.169 20.5)
XYZ	xyz(23.0910, 13.8204, 6.6049)
Luminance	0.1382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BC3742 #37BCB1

analogous

#BC3784 #BC3742 #BC6F37

triadic

#BC3742 #42BC37 #3742BC

tetradic

#BC3742 #84BC37 #37BCB1 #6F37BC

square

#BC3742 #84BC37 #37BCB1 #6F37BC

split-complementary

#BC3742 #37BC6F #3784BC

monochromatic

#5D1B21 #8D2931 #BC3742 #D06069 #DE8F96

Accessibility & contrast

On white

5.58

#BC3742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#BC3742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BC3742

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BC3742	#FFFFFF	#000000	##FFFFFF
##BC3742	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5641

Deuteranopia (green-blind)

#7D723E

Tritanopia (blue-blind)

#CE0D3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bc3742;
/* rgb */ color: rgb(188, 55, 66);
/* oklch */ color: oklch(53.8% 0.169 20.5);

Tailwind

colors: {
  custom: {
    50: '#d77776',
    500: '#bc3742',
    950: '#000000',
  },
}

SCSS

$custom: #bc3742;
$custom-light: #d77776;
$custom-dark: #000000;

JSON

{
  "hex": "#bc3742",
  "rgb": {
    "r": 188,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 355.038,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53776,
    "c": 0.16888,
    "h": 20.5
  },
  "luminance": 0.13817
}

Semantic roles & 50–950 ramp

primary

#BC3742

secondary

#86C9C3

accent

#DED24A

background

#FEF7F7

surface

#FCEEED

border

#D5C9C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #BC3742

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

Preview Lab → · Contrast checker → · Palette generator →