#B21E19#B21E19

#B21E19 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.3% C 0.183 H 28.4°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#B21E19
RGB	rgb(178, 30, 25)
HSL	hsl(2, 75%, 40%)
HSV	hsv(2, 86%, 70%)
CMYK	cmyk(0%, 83.1%, 86%, 30.2%)
CIE-LAB	lab(38.67, 56.73, 42.02)
CIE-LCH	lch(38.67, 70.60, 36.53°)
OKLab	oklab(49.32% 0.1612 0.0872)
OKLCH	oklch(49.32% 0.183 28.4)
XYZ	xyz(19.0023, 10.4669, 1.9393)
Luminance	0.1046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B21E19 #19ADB2

analogous

#B21960 #B21E19 #B26B19

triadic

#B21E19 #19B21E #1E19B2

tetradic

#B21E19 #60B219 #19ADB2 #6B19B2

square

#B21E19 #60B219 #19ADB2 #6B19B2

split-complementary

#B21E19 #19B26B #1960B2

monochromatic

#470C0A #7C1511 #B21E19 #E12E27 #E8625D

Accessibility & contrast

On white

6.79

#B21E19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#B21E19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B21E19

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B21E19	#FFFFFF	#000000	##FFFFFF
##B21E19	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504716

Deuteranopia (green-blind)

#73660F

Tritanopia (blue-blind)

#C5001F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b21e19;
/* rgb */ color: rgb(178, 30, 25);
/* oklch */ color: oklch(49.3% 0.183 28.4);

Tailwind

colors: {
  custom: {
    50: '#d36a58',
    500: '#b21e19',
    950: '#000000',
  },
}

SCSS

$custom: #b21e19;
$custom-light: #d36a58;
$custom-dark: #000000;

JSON

{
  "hex": "#b21e19",
  "rgb": {
    "r": 178,
    "g": 30,
    "b": 25
  },
  "hsl": {
    "h": 1.961,
    "s": 75.369,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49318,
    "c": 0.18326,
    "h": 28.4
  },
  "luminance": 0.10464
}

Semantic roles & 50–950 ramp

primary

#B21E19

secondary

#5BC8CC

accent

#ECF236

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B21E19

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

Preview Lab → · Contrast checker → · Palette generator →