#28409C#28409C

#28409C is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.2% C 0.152 H 267.9°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#28409C
RGB	rgb(40, 64, 156)
HSL	hsl(228, 59%, 38%)
HSV	hsv(228, 74%, 61%)
CMYK	cmyk(74.4%, 59%, 0%, 38.8%)
CIE-LAB	lab(30.68, 24.18, -52.82)
CIE-LCH	lch(30.68, 58.10, 294.60°)
OKLab	oklab(41.16% -0.0056 -0.1524)
OKLCH	oklch(41.16% 0.153 267.9)
XYZ	xyz(8.7071, 6.5173, 32.2451)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28409C #9C8428

analogous

#287A9C #28409C #4A289C

triadic

#28409C #9C2840 #409C28

tetradic

#28409C #9C287A #9C8428 #289C4A

square

#28409C #9C287A #9C8428 #289C4A

split-complementary

#28409C #9C4A28 #7A9C28

monochromatic

#0F183B #1C2C6B #28409C #3655CB #677ED8

Accessibility & contrast

On white

9.12

#28409C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#28409C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28409C

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28409C	#FFFFFF	#000000	##FFFFFF
##28409C	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9F

Deuteranopia (green-blind)

#00439A

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28409c;
/* rgb */ color: rgb(40, 64, 156);
/* oklch */ color: oklch(41.2% 0.152 267.9);

Tailwind

colors: {
  custom: {
    50: '#7374ba',
    500: '#28409c',
    950: '#000000',
  },
}

SCSS

$custom: #28409c;
$custom-light: #7374ba;
$custom-dark: #000000;

JSON

{
  "hex": "#28409c",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 156
  },
  "hsl": {
    "h": 227.586,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.41158,
    "c": 0.1525,
    "h": 267.9
  },
  "luminance": 0.06518
}

Semantic roles & 50–950 ramp

primary

#28409C

secondary

#BEAB62

accent

#C245E2

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #28409C

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

Preview Lab → · Contrast checker → · Palette generator →