#B63B4F#B63B4F

#B63B4F is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.5% C 0.158 H 14.8°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B63B4F
RGB	rgb(182, 59, 79)
HSL	hsl(350, 51%, 47%)
HSV	hsv(350, 68%, 71%)
CMYK	cmyk(0%, 67.6%, 56.6%, 28.6%)
CIE-LAB	lab(43.71, 50.86, 16.30)
CIE-LCH	lch(43.71, 53.40, 17.77°)
OKLab	oklab(53.46% 0.1529 0.0405)
OKLCH	oklch(53.46% 0.158 14.8)
XYZ	xyz(22.2687, 13.6405, 8.8559)
Luminance	0.1364 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B4F #3BB6A2

analogous

#B63B8C #B63B4F #B6653B

triadic

#B63B4F #4FB63B #3B4FB6

tetradic

#B63B4F #8CB63B #3BB6A2 #653BB6

square

#B63B4F #8CB63B #3BB6A2 #653BB6

split-complementary

#B63B4F #3BB665 #3B8CB6

monochromatic

#5A1D27 #882C3B #B63B4F #CC6273 #DB909C

Accessibility & contrast

On white

5.63

#B63B4F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B63B4F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B4F

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B4F	#FFFFFF	#000000	##FFFFFF
##B63B4F	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A574F

Deuteranopia (green-blind)

#79714C

Tritanopia (blue-blind)

#C72143

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63b4f;
/* rgb */ color: rgb(182, 59, 79);
/* oklch */ color: oklch(53.5% 0.158 14.8);

Tailwind

colors: {
  custom: {
    50: '#d27880',
    500: '#b63b4f',
    950: '#000000',
  },
}

SCSS

$custom: #b63b4f;
$custom-light: #d27880;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b4f",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 350.244,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53461,
    "c": 0.1582,
    "h": 14.8
  },
  "luminance": 0.13638
}

Semantic roles & 50–950 ramp

primary

#B63B4F

secondary

#87C6BC

accent

#DBC44D

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#15090A

muted

#837B7C

Preview Lab

Preview with #B63B4F

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

Preview Lab → · Contrast checker → · Palette generator →