#28389C#28389C

#28389C is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.163 H 270.1°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#28389C
RGB	rgb(40, 56, 156)
HSL	hsl(232, 59%, 38%)
HSV	hsv(232, 74%, 61%)
CMYK	cmyk(74.4%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(28.59, 29.53, -56.24)
CIE-LCH	lch(28.59, 63.53, 297.70°)
OKLab	oklab(39.6% 0.0002 -0.1625)
OKLCH	oklch(39.6% 0.163 270.1)
XYZ	xyz(8.2879, 5.6789, 32.1054)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28389C #9C8C28

analogous

#28729C #28389C #52289C

triadic

#28389C #9C2838 #389C28

tetradic

#28389C #9C2872 #9C8C28 #289C52

square

#28389C #9C2872 #9C8C28 #289C52

split-complementary

#28389C #9C5228 #729C28

monochromatic

#0F153B #1C276B #28389C #364ACB #6776D8

Accessibility & contrast

On white

9.83

#28389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#28389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28389C

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28389C	#FFFFFF	#000000	##FFFFFF
##28389C	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499F

Deuteranopia (green-blind)

#003E9A

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #28389c;
/* rgb */ color: rgb(40, 56, 156);
/* oklch */ color: oklch(39.6% 0.163 270.1);

Tailwind

colors: {
  custom: {
    50: '#746eba',
    500: '#28389c',
    950: '#000000',
  },
}

SCSS

$custom: #28389c;
$custom-light: #746eba;
$custom-dark: #000000;

JSON

{
  "hex": "#28389c",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 231.724,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39604,
    "c": 0.16252,
    "h": 270.1
  },
  "luminance": 0.0568
}

Semantic roles & 50–950 ramp

primary

#28389C

secondary

#BEB162

accent

#CD45E2

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28389C

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

Preview Lab → · Contrast checker → · Palette generator →