#28359E#28359E

#28359E is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.169 H 270.7°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#28359E
RGB	rgb(40, 53, 158)
HSL	hsl(233, 60%, 39%)
HSV	hsv(233, 75%, 62%)
CMYK	cmyk(74.7%, 66.5%, 0%, 38%)
CIE-LAB	lab(28.02, 32.24, -58.39)
CIE-LCH	lch(28.02, 66.70, 298.91°)
OKLab	oklab(39.24% 0.0021 -0.1688)
OKLCH	oklch(39.24% 0.169 270.7)
XYZ	xyz(8.3176, 5.4651, 32.9576)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28359E #9E9128

analogous

#28709E #28359E #56289E

triadic

#28359E #9E2835 #359E28

tetradic

#28359E #9E2870 #9E9128 #289E56

square

#28359E #9E2870 #9E9128 #289E56

split-complementary

#28359E #9E5628 #709E28

monochromatic

#0F143C #1C256D #28359E #3747CC #6874D9

Accessibility & contrast

On white

10.03

#28359E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#28359E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28359E

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28359E	#FFFFFF	#000000	##FFFFFF
##28359E	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A1

Deuteranopia (green-blind)

#003D9C

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #28359e;
/* rgb */ color: rgb(40, 53, 158);
/* oklch */ color: oklch(39.2% 0.169 270.7);

Tailwind

colors: {
  custom: {
    50: '#746cbc',
    500: '#28359e',
    950: '#000000',
  },
}

SCSS

$custom: #28359e;
$custom-light: #746cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#28359e",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 158
  },
  "hsl": {
    "h": 233.39,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39244,
    "c": 0.16883,
    "h": 270.7
  },
  "luminance": 0.05466
}

Semantic roles & 50–950 ramp

primary

#28359E

secondary

#BFB563

accent

#D145E3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #28359E

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

Preview Lab → · Contrast checker → · Palette generator →