#283390#283390

#283390 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.152 H 271.6°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#283390
RGB	rgb(40, 51, 144)
HSL	hsl(234, 57%, 36%)
HSV	hsv(234, 72%, 56%)
CMYK	cmyk(72.2%, 64.6%, 0%, 43.5%)
CIE-LAB	lab(26.25, 28.38, -52.71)
CIE-LCH	lch(26.25, 59.87, 298.30°)
OKLab	oklab(37.56% 0.0043 -0.1522)
OKLCH	oklch(37.56% 0.152 271.6)
XYZ	xyz(7.0912, 4.8317, 26.9390)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283390 #908528

analogous

#286790 #283390 #512890

triadic

#283390 #902833 #339028

tetradic

#283390 #902867 #908528 #289051

square

#283390 #902867 #908528 #289051

split-complementary

#283390 #905128 #679028

monochromatic

#0D1130 #1B2260 #283390 #3544C0 #606CD3

Accessibility & contrast

On white

10.68

#283390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#283390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283390

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283390	#FFFFFF	#000000	##FFFFFF
##283390	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004393

Deuteranopia (green-blind)

#00398E

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #283390;
/* rgb */ color: rgb(40, 51, 144);
/* oklch */ color: oklch(37.6% 0.152 271.6);

Tailwind

colors: {
  custom: {
    50: '#716ab1',
    500: '#283390',
    950: '#000000',
  },
}

SCSS

$custom: #283390;
$custom-light: #716ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#283390",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 144
  },
  "hsl": {
    "h": 233.654,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37555,
    "c": 0.15227,
    "h": 271.6
  },
  "luminance": 0.04832
}

Semantic roles & 50–950 ramp

primary

#283390

secondary

#B8AE5C

accent

#D048E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #283390

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

Preview Lab → · Contrast checker → · Palette generator →