#28389E#28389E

#28389E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.165 H 270.0°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#28389E
RGB	rgb(40, 56, 158)
HSL	hsl(232, 60%, 39%)
HSV	hsv(232, 75%, 62%)
CMYK	cmyk(74.7%, 64.6%, 0%, 38%)
CIE-LAB	lab(28.77, 30.28, -57.17)
CIE-LCH	lch(28.77, 64.69, 297.91°)
OKLab	oklab(39.79% 0.0001 -0.1652)
OKLCH	oklch(39.79% 0.165 270)
XYZ	xyz(8.4587, 5.7472, 33.0047)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28389E #9E8E28

analogous

#28739E #28389E #53289E

triadic

#28389E #9E2838 #389E28

tetradic

#28389E #9E2873 #9E8E28 #289E53

square

#28389E #9E2873 #9E8E28 #289E53

split-complementary

#28389E #9E5328 #739E28

monochromatic

#0F153C #1C276D #28389E #374BCC #6877D9

Accessibility & contrast

On white

9.77

#28389E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#28389E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28389E

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28389E	#FFFFFF	#000000	##FFFFFF
##28389E	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A1

Deuteranopia (green-blind)

#003E9C

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #28389e;
/* rgb */ color: rgb(40, 56, 158);
/* oklch */ color: oklch(39.8% 0.165 270.0);

Tailwind

colors: {
  custom: {
    50: '#746ebc',
    500: '#28389e',
    950: '#000000',
  },
}

SCSS

$custom: #28389e;
$custom-light: #746ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#28389e",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 158
  },
  "hsl": {
    "h": 231.864,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.3979,
    "c": 0.16523,
    "h": 270
  },
  "luminance": 0.05748
}

Semantic roles & 50–950 ramp

primary

#28389E

secondary

#BFB263

accent

#CD45E3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28389E

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

Preview Lab → · Contrast checker → · Palette generator →