#28228B#28228B

#28228B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.2% C 0.165 H 275.7°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#28228B
RGB	rgb(40, 34, 139)
HSL	hsl(243, 61%, 34%)
HSV	hsv(243, 76%, 55%)
CMYK	cmyk(71.2%, 75.5%, 0%, 45.5%)
CIE-LAB	lab(21.79, 37.34, -56.92)
CIE-LCH	lch(21.79, 68.08, 303.27°)
OKLab	oklab(34.19% 0.0163 -0.1645)
OKLCH	oklch(34.19% 0.165 275.7)
XYZ	xyz(6.1058, 3.4587, 24.7669)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28228B #858B22

analogous

#22518B #28228B #5D228B

triadic

#28228B #8B2822 #228B28

tetradic

#28228B #8B2251 #858B22 #228B5D

square

#28228B #8B2251 #858B22 #228B5D

split-complementary

#28228B #8B5D22 #518B22

monochromatic

#0C0A29 #1A165A #28228B #362EBC #5A53D5

Accessibility & contrast

On white

12.41

#28228B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#28228B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28228B

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28228B	#FFFFFF	#000000	##FFFFFF
##28228B	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)

#00398E

Deuteranopia (green-blind)

#002F89

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #28228b;
/* rgb */ color: rgb(40, 34, 139);
/* oklch */ color: oklch(34.2% 0.165 275.7);

Tailwind

colors: {
  custom: {
    50: '#725fae',
    500: '#28228b',
    950: '#000000',
  },
}

SCSS

$custom: #28228b;
$custom-light: #725fae;
$custom-dark: #000000;

JSON

{
  "hex": "#28228b",
  "rgb": {
    "r": 40,
    "g": 34,
    "b": 139
  },
  "hsl": {
    "h": 243.429,
    "s": 60.694,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34186,
    "c": 0.16536,
    "h": 275.7
  },
  "luminance": 0.03459
}

Semantic roles & 50–950 ramp

primary

#28228B

secondary

#B3B850

accent

#E444DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #28228B

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

Preview Lab → · Contrast checker → · Palette generator →