#28218B#28218B

#28218B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.166 H 275.8°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#28218B
RGB	rgb(40, 33, 139)
HSL	hsl(244, 62%, 34%)
HSV	hsv(244, 76%, 55%)
CMYK	cmyk(71.2%, 76.3%, 0%, 45.5%)
CIE-LAB	lab(21.59, 37.92, -57.26)
CIE-LCH	lch(21.59, 68.68, 303.51°)
OKLab	oklab(34.04% 0.0169 -0.1655)
OKLCH	oklch(34.04% 0.166 275.8)
XYZ	xyz(6.0776, 3.4023, 24.7575)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28218B #848B21

analogous

#214F8B #28218B #5D218B

triadic

#28218B #8B2821 #218B28

tetradic

#28218B #8B214F #848B21 #218B5D

square

#28218B #8B214F #848B21 #218B5D

split-complementary

#28218B #8B5D21 #4F8B21

monochromatic

#0C0A28 #1A155A #28218B #362DBC #5A51D6

Accessibility & contrast

On white

12.50

#28218B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#28218B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28218B

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28218B	#FFFFFF	#000000	##FFFFFF
##28218B	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#002F89

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28218b;
/* rgb */ color: rgb(40, 33, 139);
/* oklch */ color: oklch(34.0% 0.166 275.8);

Tailwind

colors: {
  custom: {
    50: '#725eae',
    500: '#28218b',
    950: '#000000',
  },
}

SCSS

$custom: #28218b;
$custom-light: #725eae;
$custom-dark: #000000;

JSON

{
  "hex": "#28218b",
  "rgb": {
    "r": 40,
    "g": 33,
    "b": 139
  },
  "hsl": {
    "h": 243.962,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3404,
    "c": 0.16639,
    "h": 275.8
  },
  "luminance": 0.03403
}

Semantic roles & 50–950 ramp

primary

#28218B

secondary

#B2B94F

accent

#E543DA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #28218B

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

Preview Lab → · Contrast checker → · Palette generator →