#28409A#28409A

#28409A is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.0% C 0.150 H 267.8°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#28409A
RGB	rgb(40, 64, 154)
HSL	hsl(227, 59%, 38%)
HSV	hsv(227, 74%, 60%)
CMYK	cmyk(74%, 58.4%, 0%, 39.6%)
CIE-LAB	lab(30.52, 23.42, -51.87)
CIE-LCH	lch(30.52, 56.91, 294.30°)
OKLab	oklab(40.99% -0.0057 -0.1496)
OKLCH	oklch(40.99% 0.15 267.8)
XYZ	xyz(8.5392, 6.4501, 31.3605)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28409A #9A8228

analogous

#28799A #28409A #49289A

triadic

#28409A #9A2840 #409A28

tetradic

#28409A #9A2879 #9A8228 #289A49

square

#28409A #9A2879 #9A8228 #289A49

split-complementary

#28409A #9A4928 #799A28

monochromatic

#0F1839 #1B2C69 #28409A #3554CA #657DD7

Accessibility & contrast

On white

9.17

#28409A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#28409A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28409A

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28409A	#FFFFFF	#000000	##FFFFFF
##28409A	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9D

Deuteranopia (green-blind)

#004398

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28409a;
/* rgb */ color: rgb(40, 64, 154);
/* oklch */ color: oklch(41.0% 0.150 267.8);

Tailwind

colors: {
  custom: {
    50: '#7274b8',
    500: '#28409a',
    950: '#000000',
  },
}

SCSS

$custom: #28409a;
$custom-light: #7274b8;
$custom-dark: #000000;

JSON

{
  "hex": "#28409a",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 154
  },
  "hsl": {
    "h": 227.368,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40987,
    "c": 0.14971,
    "h": 267.8
  },
  "luminance": 0.06451
}

Semantic roles & 50–950 ramp

primary

#28409A

secondary

#BDAA61

accent

#C146E2

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #28409A

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

Preview Lab → · Contrast checker → · Palette generator →