#28228A#28228A

#28228A is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.1% C 0.164 H 275.8°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#28228A
RGB	rgb(40, 34, 138)
HSL	hsl(243, 60%, 34%)
HSV	hsv(243, 75%, 54%)
CMYK	cmyk(71%, 75.4%, 0%, 45.9%)
CIE-LAB	lab(21.69, 37.00, -56.47)
CIE-LCH	lch(21.69, 67.52, 303.23°)
OKLab	oklab(34.08% 0.0165 -0.1632)
OKLCH	oklch(34.08% 0.164 275.8)
XYZ	xyz(6.0330, 3.4296, 24.3839)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28228A #848A22

analogous

#22508A #28228A #5C228A

triadic

#28228A #8A2822 #228A28

tetradic

#28228A #8A2250 #848A22 #228A5C

square

#28228A #8A2250 #848A22 #228A5C

split-complementary

#28228A #8A5C22 #508A22

monochromatic

#0C0A28 #1A1659 #28228A #362EBB #5A52D4

Accessibility & contrast

On white

12.46

#28228A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#28228A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28228A

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28228A	#FFFFFF	#000000	##FFFFFF
##28228A	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388D

Deuteranopia (green-blind)

#002F88

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28228a;
/* rgb */ color: rgb(40, 34, 138);
/* oklch */ color: oklch(34.1% 0.164 275.8);

Tailwind

colors: {
  custom: {
    50: '#715fad',
    500: '#28228a',
    950: '#000000',
  },
}

SCSS

$custom: #28228a;
$custom-light: #715fad;
$custom-dark: #000000;

JSON

{
  "hex": "#28228a",
  "rgb": {
    "r": 40,
    "g": 34,
    "b": 138
  },
  "hsl": {
    "h": 243.462,
    "s": 60.465,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34079,
    "c": 0.16407,
    "h": 275.8
  },
  "luminance": 0.0343
}

Semantic roles & 50–950 ramp

primary

#28228A

secondary

#B2B850

accent

#E444DA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #28228A

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

Preview Lab → · Contrast checker → · Palette generator →