#B63F3E#B63F3E

#B63F3E is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.6% C 0.155 H 24.4°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#B63F3E
RGB	rgb(182, 63, 62)
HSL	hsl(1, 49%, 48%)
HSV	hsv(1, 66%, 71%)
CMYK	cmyk(0%, 65.4%, 65.9%, 28.6%)
CIE-LAB	lab(44.02, 48.02, 27.06)
CIE-LCH	lch(44.02, 55.12, 29.40°)
OKLab	oklab(53.59% 0.1408 0.0639)
OKLCH	oklch(53.59% 0.155 24.4)
XYZ	xyz(21.9406, 13.8509, 6.0747)
Luminance	0.1385 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F3E #3EB5B6

analogous

#B63E79 #B63F3E #B67B3E

triadic

#B63F3E #3EB63F #3F3EB6

tetradic

#B63F3E #79B63E #3EB5B6 #7B3EB6

square

#B63F3E #79B63E #3EB5B6 #7B3EB6

split-complementary

#B63F3E #3EB67B #3E79B6

monochromatic

#5B1F1F #882F2E #B63F3E #CB6766 #DB9494

Accessibility & contrast

On white

5.57

#B63F3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B63F3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F3E

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F3E	#FFFFFF	#000000	##FFFFFF
##B63F3E	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583D

Deuteranopia (green-blind)

#7D723B

Tritanopia (blue-blind)

#C82340

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f3e;
/* rgb */ color: rgb(182, 63, 62);
/* oklch */ color: oklch(53.6% 0.155 24.4);

Tailwind

colors: {
  custom: {
    50: '#d37a73',
    500: '#b63f3e',
    950: '#000000',
  },
}

SCSS

$custom: #b63f3e;
$custom-light: #d37a73;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f3e",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 62
  },
  "hsl": {
    "h": 0.5,
    "s": 49.18,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53588,
    "c": 0.15464,
    "h": 24.4
  },
  "luminance": 0.13848
}

Semantic roles & 50–950 ramp

primary

#B63F3E

secondary

#8AC5C6

accent

#D8D94F

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B63F3E

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

Preview Lab → · Contrast checker → · Palette generator →