#B4213F#B4213F

#B4213F is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.4% C 0.180 H 16.3°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#B4213F
RGB	rgb(180, 33, 63)
HSL	hsl(348, 69%, 42%)
HSV	hsv(348, 82%, 71%)
CMYK	cmyk(0%, 81.7%, 65%, 29.4%)
CIE-LAB	lab(39.84, 58.03, 21.07)
CIE-LCH	lch(39.84, 61.74, 19.96°)
OKLab	oklab(50.41% 0.1732 0.0505)
OKLCH	oklch(50.41% 0.18 16.3)
XYZ	xyz(20.2657, 11.1530, 5.7873)
Luminance	0.1115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4213F #21B496

analogous

#B42189 #B4213F #B44D21

triadic

#B4213F #3FB421 #213FB4

tetradic

#B4213F #89B421 #21B496 #4D21B4

square

#B4213F #89B421 #21B496 #4D21B4

split-complementary

#B4213F #21B44D #2189B4

monochromatic

#4D0E1B #80182D #B4213F #DA3859 #E46B84

Accessibility & contrast

On white

6.50

#B4213F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#B4213F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4213F

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4213F	#FFFFFF	#000000	##FFFFFF
##B4213F	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4A3F

Deuteranopia (green-blind)

#72693B

Tritanopia (blue-blind)

#C6002E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b4213f;
/* rgb */ color: rgb(180, 33, 63);
/* oklch */ color: oklch(50.4% 0.180 16.3);

Tailwind

colors: {
  custom: {
    50: '#d26d73',
    500: '#b4213f',
    950: '#000000',
  },
}

SCSS

$custom: #b4213f;
$custom-light: #d26d73;
$custom-dark: #000000;

JSON

{
  "hex": "#b4213f",
  "rgb": {
    "r": 180,
    "g": 33,
    "b": 63
  },
  "hsl": {
    "h": 347.755,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50412,
    "c": 0.18046,
    "h": 16.3
  },
  "luminance": 0.1115
}

Semantic roles & 50–950 ramp

primary

#B4213F

secondary

#67CAB6

accent

#ECC83C

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B4213F

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

Preview Lab → · Contrast checker → · Palette generator →