#BC3728#BC3728

#BC3728 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.172 H 30.1°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#BC3728
RGB	rgb(188, 55, 40)
HSL	hsl(6, 65%, 45%)
HSV	hsv(6, 79%, 74%)
CMYK	cmyk(0%, 70.7%, 78.7%, 26.3%)
CIE-LAB	lab(43.63, 52.26, 39.55)
CIE-LCH	lch(43.63, 65.54, 37.12°)
OKLab	oklab(53.4% 0.149 0.0863)
OKLCH	oklch(53.4% 0.172 30.1)
XYZ	xyz(22.4908, 13.5804, 3.4441)
Luminance	0.1358 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BC3728 #28ADBC

analogous

#BC2863 #BC3728 #BC8128

triadic

#BC3728 #28BC37 #3728BC

tetradic

#BC3728 #63BC28 #28ADBC #8128BC

square

#BC3728 #63BC28 #28ADBC #8128BC

split-complementary

#BC3728 #28BC81 #2863BC

monochromatic

#571913 #8A281D #BC3728 #D85749 #E3867B

Accessibility & contrast

On white

5.65

#BC3728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#BC3728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BC3728

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BC3728	#FFFFFF	#000000	##FFFFFF
##BC3728	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5425

Deuteranopia (green-blind)

#7F7222

Tritanopia (blue-blind)

#CF0035

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bc3728;
/* rgb */ color: rgb(188, 55, 40);
/* oklch */ color: oklch(53.4% 0.172 30.1);

Tailwind

colors: {
  custom: {
    50: '#d97663',
    500: '#bc3728',
    950: '#000000',
  },
}

SCSS

$custom: #bc3728;
$custom-light: #d97663;
$custom-dark: #000000;

JSON

{
  "hex": "#bc3728",
  "rgb": {
    "r": 188,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 6.081,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53404,
    "c": 0.17216,
    "h": 30.1
  },
  "luminance": 0.13577
}

Semantic roles & 50–950 ramp

primary

#BC3728

secondary

#75C2CB

accent

#D7E840

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #BC3728

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

Preview Lab → · Contrast checker → · Palette generator →