#28347D#28347D

#28347D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.1% C 0.124 H 271.7°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#28347D
RGB	rgb(40, 52, 125)
HSL	hsl(232, 52%, 32%)
HSV	hsv(232, 68%, 49%)
CMYK	cmyk(68%, 58.4%, 0%, 51%)
CIE-LAB	lab(24.91, 20.54, -43.04)
CIE-LCH	lch(24.91, 47.69, 295.52°)
OKLab	oklab(36.06% 0.0036 -0.1238)
OKLCH	oklch(36.06% 0.124 271.7)
XYZ	xyz(5.8035, 4.3872, 19.9390)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28347D #7D7128

analogous

#285F7D #28347D #46287D

triadic

#28347D #7D2834 #347D28

tetradic

#28347D #7D285F #7D7128 #287D46

square

#28347D #7D285F #7D7128 #287D46

split-complementary

#28347D #7D4628 #5F7D28

monochromatic

#0A0D20 #19214F #28347D #3747AB #5667C9

Accessibility & contrast

On white

11.18

#28347D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#28347D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28347D

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28347D	#FFFFFF	#000000	##FFFFFF
##28347D	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00377C

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #28347d;
/* rgb */ color: rgb(40, 52, 125);
/* oklch */ color: oklch(36.1% 0.124 271.7);

Tailwind

colors: {
  custom: {
    50: '#6d6ba3',
    500: '#28347d',
    950: '#000000',
  },
}

SCSS

$custom: #28347d;
$custom-light: #6d6ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#28347d",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 125
  },
  "hsl": {
    "h": 231.529,
    "s": 51.515,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36063,
    "c": 0.12383,
    "h": 271.7
  },
  "luminance": 0.04388
}

Semantic roles & 50–950 ramp

primary

#28347D

secondary

#AEA153

accent

#C74DDB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #28347D

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

Preview Lab → · Contrast checker → · Palette generator →