#BC3743#BC3743

#BC3743 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.169 H 20.0°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#BC3743
RGB	rgb(188, 55, 67)
HSL	hsl(355, 55%, 48%)
HSV	hsv(355, 71%, 74%)
CMYK	cmyk(0%, 70.7%, 64.4%, 26.3%)
CIE-LAB	lab(43.99, 53.54, 24.23)
CIE-LCH	lch(43.99, 58.77, 24.35°)
OKLab	oklab(53.8% 0.1586 0.0579)
OKLCH	oklch(53.8% 0.169 20)
XYZ	xyz(23.1207, 13.8323, 6.7616)
Luminance	0.1383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BC3743 #37BCB0

analogous

#BC3786 #BC3743 #BC6D37

triadic

#BC3743 #43BC37 #3743BC

tetradic

#BC3743 #86BC37 #37BCB0 #6D37BC

square

#BC3743 #86BC37 #37BCB0 #6D37BC

split-complementary

#BC3743 #37BC6D #3786BC

monochromatic

#5D1B21 #8D2932 #BC3743 #D0606A #DE8F96

Accessibility & contrast

On white

5.58

#BC3743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#BC3743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BC3743

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BC3743	#FFFFFF	#000000	##FFFFFF
##BC3743	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5642

Deuteranopia (green-blind)

#7D723F

Tritanopia (blue-blind)

#CE0E3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bc3743;
/* rgb */ color: rgb(188, 55, 67);
/* oklch */ color: oklch(53.8% 0.169 20.0);

Tailwind

colors: {
  custom: {
    50: '#d77777',
    500: '#bc3743',
    950: '#000000',
  },
}

SCSS

$custom: #bc3743;
$custom-light: #d77777;
$custom-dark: #000000;

JSON

{
  "hex": "#bc3743",
  "rgb": {
    "r": 188,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 354.586,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53795,
    "c": 0.16883,
    "h": 20
  },
  "luminance": 0.13829
}

Semantic roles & 50–950 ramp

primary

#BC3743

secondary

#86C9C3

accent

#DED14A

background

#FEF7F7

surface

#FCEEED

border

#D5C9C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #BC3743

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

Preview Lab → · Contrast checker → · Palette generator →