#28389A#28389A

#28389A is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.4% C 0.160 H 270.1°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#28389A
RGB	rgb(40, 56, 154)
HSL	hsl(232, 59%, 38%)
HSV	hsv(232, 74%, 60%)
CMYK	cmyk(74%, 63.6%, 0%, 39.6%)
CIE-LAB	lab(28.41, 28.79, -55.31)
CIE-LCH	lch(28.41, 62.36, 297.49°)
OKLab	oklab(39.42% 0.0003 -0.1598)
OKLCH	oklch(39.42% 0.16 270.1)
XYZ	xyz(8.1200, 5.6117, 31.2208)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28389A #9A8A28

analogous

#28719A #28389A #51289A

triadic

#28389A #9A2838 #389A28

tetradic

#28389A #9A2871 #9A8A28 #289A51

square

#28389A #9A2871 #9A8A28 #289A51

split-complementary

#28389A #9A5128 #719A28

monochromatic

#0F1539 #1B2669 #28389A #354ACA #6575D7

Accessibility & contrast

On white

9.89

#28389A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#28389A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28389A

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28389A	#FFFFFF	#000000	##FFFFFF
##28389A	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489D

Deuteranopia (green-blind)

#003E98

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #28389a;
/* rgb */ color: rgb(40, 56, 154);
/* oklch */ color: oklch(39.4% 0.160 270.1);

Tailwind

colors: {
  custom: {
    50: '#736eb9',
    500: '#28389a',
    950: '#000000',
  },
}

SCSS

$custom: #28389a;
$custom-light: #736eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#28389a",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 154
  },
  "hsl": {
    "h": 231.579,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39419,
    "c": 0.1598,
    "h": 270.1
  },
  "luminance": 0.05613
}

Semantic roles & 50–950 ramp

primary

#28389A

secondary

#BDB061

accent

#CC46E2

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #28389A

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

Preview Lab → · Contrast checker → · Palette generator →