#B63C40#B63C40

#B63C40 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.3% C 0.158 H 22.4°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B63C40
RGB	rgb(182, 60, 64)
HSL	hsl(358, 50%, 47%)
HSV	hsv(358, 67%, 71%)
CMYK	cmyk(0%, 67%, 64.8%, 28.6%)
CIE-LAB	lab(43.58, 49.41, 25.31)
CIE-LCH	lch(43.58, 55.52, 27.12°)
OKLab	oklab(53.27% 0.1457 0.0602)
OKLCH	oklch(53.27% 0.158 22.4)
XYZ	xyz(21.8349, 13.5500, 6.3151)
Luminance	0.1355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63C40 #3CB6B2

analogous

#B63C7D #B63C40 #B6753C

triadic

#B63C40 #40B63C #3C40B6

tetradic

#B63C40 #7DB63C #3CB6B2 #753CB6

square

#B63C40 #7DB63C #3CB6B2 #753CB6

split-complementary

#B63C40 #3CB675 #3C7DB6

monochromatic

#5A1E20 #882D30 #B63C40 #CC6367 #DB9194

Accessibility & contrast

On white

5.66

#B63C40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B63C40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63C40

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63C40	#FFFFFF	#000000	##FFFFFF
##B63C40	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563F

Deuteranopia (green-blind)

#7B713D

Tritanopia (blue-blind)

#C81E3F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63c40;
/* rgb */ color: rgb(182, 60, 64);
/* oklch */ color: oklch(53.3% 0.158 22.4);

Tailwind

colors: {
  custom: {
    50: '#d37974',
    500: '#b63c40',
    950: '#000000',
  },
}

SCSS

$custom: #b63c40;
$custom-light: #d37974;
$custom-dark: #000000;

JSON

{
  "hex": "#b63c40",
  "rgb": {
    "r": 182,
    "g": 60,
    "b": 64
  },
  "hsl": {
    "h": 358.033,
    "s": 50.413,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5327,
    "c": 0.15759,
    "h": 22.4
  },
  "luminance": 0.13547
}

Semantic roles & 50–950 ramp

primary

#B63C40

secondary

#88C6C4

accent

#DAD54E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63C40

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

Preview Lab → · Contrast checker → · Palette generator →