#28409D#28409D

#28409D is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.2% C 0.154 H 267.9°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#28409D
RGB	rgb(40, 64, 157)
HSL	hsl(228, 59%, 39%)
HSV	hsv(228, 75%, 62%)
CMYK	cmyk(74.5%, 59.2%, 0%, 38.4%)
CIE-LAB	lab(30.76, 24.57, -53.30)
CIE-LCH	lch(30.76, 58.69, 294.74°)
OKLab	oklab(41.24% -0.0056 -0.1538)
OKLCH	oklch(41.24% 0.154 267.9)
XYZ	xyz(8.7922, 6.5513, 32.6929)
Luminance	0.0655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28409D #9D8528

analogous

#287A9D #28409D #4A289D

triadic

#28409D #9D2840 #409D28

tetradic

#28409D #9D287A #9D8528 #289D4A

square

#28409D #9D287A #9D8528 #289D4A

split-complementary

#28409D #9D4A28 #7A9D28

monochromatic

#0F183B #1C2C6C #28409D #3655CC #677ED8

Accessibility & contrast

On white

9.09

#28409D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#28409D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28409D

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28409D	#FFFFFF	#000000	##FFFFFF
##28409D	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA0

Deuteranopia (green-blind)

#00439B

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #28409d;
/* rgb */ color: rgb(40, 64, 157);
/* oklch */ color: oklch(41.2% 0.154 267.9);

Tailwind

colors: {
  custom: {
    50: '#7374bb',
    500: '#28409d',
    950: '#000000',
  },
}

SCSS

$custom: #28409d;
$custom-light: #7374bb;
$custom-dark: #000000;

JSON

{
  "hex": "#28409d",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 157
  },
  "hsl": {
    "h": 227.692,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.41243,
    "c": 0.15389,
    "h": 267.9
  },
  "luminance": 0.06552
}

Semantic roles & 50–950 ramp

primary

#28409D

secondary

#BEAC62

accent

#C245E3

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #28409D

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

Preview Lab → · Contrast checker → · Palette generator →