#BC373B#BC373B

#BC373B is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.7% C 0.169 H 23.4°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#BC373B
RGB	rgb(188, 55, 59)
HSL	hsl(358, 55%, 48%)
HSV	hsv(358, 71%, 74%)
CMYK	cmyk(0%, 70.7%, 68.6%, 26.3%)
CIE-LAB	lab(43.86, 53.09, 28.90)
CIE-LCH	lch(43.86, 60.45, 28.57°)
OKLab	oklab(53.66% 0.1555 0.0673)
OKLCH	oklch(53.66% 0.169 23.4)
XYZ	xyz(22.8971, 13.7429, 5.5838)
Luminance	0.1374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BC373B #37BCB8

analogous

#BC377E #BC373B #BC7537

triadic

#BC373B #3BBC37 #373BBC

tetradic

#BC373B #7EBC37 #37BCB8 #7537BC

square

#BC373B #7EBC37 #37BCB8 #7537BC

split-complementary

#BC373B #37BC75 #377EBC

monochromatic

#5D1B1D #8D292C #BC373B #D06063 #DE8F92

Accessibility & contrast

On white

5.60

#BC373B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#BC373B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BC373B

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BC373B	#FFFFFF	#000000	##FFFFFF
##BC373B	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)

#5C563A

Deuteranopia (green-blind)

#7E7237

Tritanopia (blue-blind)

#CF093A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bc373b;
/* rgb */ color: rgb(188, 55, 59);
/* oklch */ color: oklch(53.7% 0.169 23.4);

Tailwind

colors: {
  custom: {
    50: '#d87771',
    500: '#bc373b',
    950: '#000000',
  },
}

SCSS

$custom: #bc373b;
$custom-light: #d87771;
$custom-dark: #000000;

JSON

{
  "hex": "#bc373b",
  "rgb": {
    "r": 188,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 358.195,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53656,
    "c": 0.16947,
    "h": 23.4
  },
  "luminance": 0.1374
}

Semantic roles & 50–950 ramp

primary

#BC373B

secondary

#86C9C7

accent

#DEDA4A

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BC373B

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

Preview Lab → · Contrast checker → · Palette generator →