#B63027#B63027

#B63027 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.172 H 28.5°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B63027
RGB	rgb(182, 48, 39)
HSL	hsl(4, 65%, 43%)
HSV	hsv(4, 79%, 71%)
CMYK	cmyk(0%, 73.6%, 78.6%, 28.6%)
CIE-LAB	lab(41.55, 52.86, 37.60)
CIE-LCH	lch(41.55, 64.87, 35.42°)
OKLab	oklab(51.64% 0.1513 0.0822)
OKLCH	oklch(51.64% 0.172 28.5)
XYZ	xyz(20.7170, 12.2087, 3.1847)
Luminance	0.1221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63027 #27ADB6

analogous

#B62765 #B63027 #B67727

triadic

#B63027 #27B630 #3027B6

tetradic

#B63027 #65B627 #27ADB6 #7727B6

square

#B63027 #65B627 #27ADB6 #7727B6

split-complementary

#B63027 #27B677 #2765B6

monochromatic

#511511 #84231C #B63027 #D74D43 #E27D76

Accessibility & contrast

On white

6.10

#B63027 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B63027 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63027

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63027	#FFFFFF	#000000	##FFFFFF
##B63027	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)

#584F25

Deuteranopia (green-blind)

#796D21

Tritanopia (blue-blind)

#C9002F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b63027;
/* rgb */ color: rgb(182, 48, 39);
/* oklch */ color: oklch(51.6% 0.172 28.5);

Tailwind

colors: {
  custom: {
    50: '#d57262',
    500: '#b63027',
    950: '#000000',
  },
}

SCSS

$custom: #b63027;
$custom-light: #d57262;
$custom-dark: #000000;

JSON

{
  "hex": "#b63027",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 39
  },
  "hsl": {
    "h": 3.776,
    "s": 64.706,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51641,
    "c": 0.17223,
    "h": 28.5
  },
  "luminance": 0.12205
}

Semantic roles & 50–950 ramp

primary

#B63027

secondary

#70C3C9

accent

#DDE840

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B63027

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

Preview Lab → · Contrast checker → · Palette generator →