#28218D#28218D

#28218D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.169 H 275.6°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#28218D
RGB	rgb(40, 33, 141)
HSL	hsl(244, 62%, 34%)
HSV	hsv(244, 77%, 55%)
CMYK	cmyk(71.6%, 76.6%, 0%, 44.7%)
CIE-LAB	lab(21.80, 38.60, -58.16)
CIE-LCH	lch(21.80, 69.80, 303.57°)
OKLab	oklab(34.26% 0.0164 -0.1681)
OKLCH	oklch(34.26% 0.169 275.6)
XYZ	xyz(6.2251, 3.4613, 25.5342)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28218D #868D21

analogous

#21508D #28218D #5E218D

triadic

#28218D #8D2821 #218D28

tetradic

#28218D #8D2150 #868D21 #218D5E

square

#28218D #8D2150 #868D21 #218D5E

split-complementary

#28218D #8D5E21 #508D21

monochromatic

#0C0A2A #1A155B #28218D #362DBF #5B52D6

Accessibility & contrast

On white

12.41

#28218D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#28218D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28218D

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28218D	#FFFFFF	#000000	##FFFFFF
##28218D	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003990

Deuteranopia (green-blind)

#002F8B

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28218d;
/* rgb */ color: rgb(40, 33, 141);
/* oklch */ color: oklch(34.3% 0.169 275.6);

Tailwind

colors: {
  custom: {
    50: '#725eaf',
    500: '#28218d',
    950: '#000000',
  },
}

SCSS

$custom: #28218d;
$custom-light: #725eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#28218d",
  "rgb": {
    "r": 40,
    "g": 33,
    "b": 141
  },
  "hsl": {
    "h": 243.889,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.34257,
    "c": 0.16893,
    "h": 275.6
  },
  "luminance": 0.03462
}

Semantic roles & 50–950 ramp

primary

#28218D

secondary

#B3BA50

accent

#E543DB

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #28218D

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

Preview Lab → · Contrast checker → · Palette generator →