#B63028#B63028

#B63028 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.172 H 28.2°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B63028
RGB	rgb(182, 48, 40)
HSL	hsl(3, 64%, 44%)
HSV	hsv(3, 78%, 71%)
CMYK	cmyk(0%, 73.6%, 78%, 28.6%)
CIE-LAB	lab(41.56, 52.90, 37.05)
CIE-LCH	lch(41.56, 64.58, 35.00°)
OKLab	oklab(51.65% 0.1517 0.0813)
OKLCH	oklch(51.65% 0.172 28.2)
XYZ	xyz(20.7338, 12.2154, 3.2732)
Luminance	0.1221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63028 #28AEB6

analogous

#B62867 #B63028 #B67728

triadic

#B63028 #28B630 #3028B6

tetradic

#B63028 #67B628 #28AEB6 #7728B6

square

#B63028 #67B628 #28AEB6 #7728B6

split-complementary

#B63028 #28B677 #2867B6

monochromatic

#521612 #84231D #B63028 #D64D45 #E17D77

Accessibility & contrast

On white

6.10

#B63028 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B63028 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63028

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63028	#FFFFFF	#000000	##FFFFFF
##B63028	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F26

Deuteranopia (green-blind)

#796D22

Tritanopia (blue-blind)

#C90030

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b63028;
/* rgb */ color: rgb(182, 48, 40);
/* oklch */ color: oklch(51.7% 0.172 28.2);

Tailwind

colors: {
  custom: {
    50: '#d57263',
    500: '#b63028',
    950: '#000000',
  },
}

SCSS

$custom: #b63028;
$custom-light: #d57263;
$custom-dark: #000000;

JSON

{
  "hex": "#b63028",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 40
  },
  "hsl": {
    "h": 3.38,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51652,
    "c": 0.17209,
    "h": 28.2
  },
  "luminance": 0.12212
}

Semantic roles & 50–950 ramp

primary

#B63028

secondary

#71C4C9

accent

#DEE741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B63028

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

Preview Lab → · Contrast checker → · Palette generator →