#B63528#B63528

#B63528 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.168 H 29.6°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B63528
RGB	rgb(182, 53, 40)
HSL	hsl(5, 64%, 44%)
HSV	hsv(5, 78%, 71%)
CMYK	cmyk(0%, 70.9%, 78%, 28.6%)
CIE-LAB	lab(42.23, 51.05, 37.75)
CIE-LCH	lch(42.23, 63.49, 36.48°)
OKLab	oklab(52.15% 0.1459 0.0829)
OKLCH	oklch(52.15% 0.168 29.6)
XYZ	xyz(20.9499, 12.6477, 3.3452)
Luminance	0.1264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63528 #28A9B6

analogous

#B62862 #B63528 #B67C28

triadic

#B63528 #28B635 #3528B6

tetradic

#B63528 #62B628 #28A9B6 #7C28B6

square

#B63528 #62B628 #28A9B6 #7C28B6

split-complementary

#B63528 #28B67C #2862B6

monochromatic

#521812 #84261D #B63528 #D65245 #E18177

Accessibility & contrast

On white

5.95

#B63528 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B63528 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63528

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63528	#FFFFFF	#000000	##FFFFFF
##B63528	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5225

Deuteranopia (green-blind)

#7B6E23

Tritanopia (blue-blind)

#C80033

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b63528;
/* rgb */ color: rgb(182, 53, 40);
/* oklch */ color: oklch(52.2% 0.168 29.6);

Tailwind

colors: {
  custom: {
    50: '#d57563',
    500: '#b63528',
    950: '#000000',
  },
}

SCSS

$custom: #b63528;
$custom-light: #d57563;
$custom-dark: #000000;

JSON

{
  "hex": "#b63528",
  "rgb": {
    "r": 182,
    "g": 53,
    "b": 40
  },
  "hsl": {
    "h": 5.493,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52154,
    "c": 0.16775,
    "h": 29.6
  },
  "luminance": 0.12644
}

Semantic roles & 50–950 ramp

primary

#B63528

secondary

#71C1C9

accent

#D8E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B63528

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

Preview Lab → · Contrast checker → · Palette generator →