#28348A#28348A

#28348A is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.143 H 271.5°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#28348A
RGB	rgb(40, 52, 138)
HSL	hsl(233, 55%, 35%)
HSV	hsv(233, 71%, 54%)
CMYK	cmyk(71%, 62.3%, 0%, 45.9%)
CIE-LAB	lab(25.98, 25.46, -49.43)
CIE-LCH	lch(25.98, 55.60, 297.26°)
OKLab	oklab(37.2% 0.0037 -0.1426)
OKLCH	oklch(37.2% 0.143 271.5)
XYZ	xyz(6.6890, 4.7414, 24.6025)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28348A #8A7E28

analogous

#28658A #28348A #4D288A

triadic

#28348A #8A2834 #348A28

tetradic

#28348A #8A2865 #8A7E28 #288A4D

square

#28348A #8A2865 #8A7E28 #288A4D

split-complementary

#28348A #8A4D28 #658A28

monochromatic

#0C102B #1A225B #28348A #3646B9 #5D6BD0

Accessibility & contrast

On white

10.78

#28348A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#28348A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28348A

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28348A	#FFFFFF	#000000	##FFFFFF
##28348A	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #28348a;
/* rgb */ color: rgb(40, 52, 138);
/* oklch */ color: oklch(37.2% 0.143 271.5);

Tailwind

colors: {
  custom: {
    50: '#706bad',
    500: '#28348a',
    950: '#000000',
  },
}

SCSS

$custom: #28348a;
$custom-light: #706bad;
$custom-dark: #000000;

JSON

{
  "hex": "#28348a",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 138
  },
  "hsl": {
    "h": 232.653,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37197,
    "c": 0.14262,
    "h": 271.5
  },
  "luminance": 0.04742
}

Semantic roles & 50–950 ramp

primary

#28348A

secondary

#B5AA59

accent

#CC49DE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #28348A

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

Preview Lab → · Contrast checker → · Palette generator →