#283288#283288

#283288 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.142 H 272.2°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#283288
RGB	rgb(40, 50, 136)
HSL	hsl(234, 55%, 35%)
HSV	hsv(234, 71%, 53%)
CMYK	cmyk(70.6%, 63.2%, 0%, 46.7%)
CIE-LAB	lab(25.29, 26.06, -49.32)
CIE-LCH	lch(25.29, 55.78, 297.85°)
OKLab	oklab(36.63% 0.0054 -0.1423)
OKLCH	oklch(36.63% 0.142 272.2)
XYZ	xyz(6.4581, 4.5093, 23.8178)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283288 #887E28

analogous

#286288 #283288 #4E2888

triadic

#283288 #882832 #328828

tetradic

#283288 #882862 #887E28 #28884E

square

#283288 #882862 #887E28 #28884E

split-complementary

#283288 #884E28 #628828

monochromatic

#0C0F29 #1A2159 #283288 #3643B7 #5B68CF

Accessibility & contrast

On white

11.04

#283288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#283288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283288

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283288	#FFFFFF	#000000	##FFFFFF
##283288	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408B

Deuteranopia (green-blind)

#003886

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283288;
/* rgb */ color: rgb(40, 50, 136);
/* oklch */ color: oklch(36.6% 0.142 272.2);

Tailwind

colors: {
  custom: {
    50: '#6f69ab',
    500: '#283288',
    950: '#000000',
  },
}

SCSS

$custom: #283288;
$custom-light: #6f69ab;
$custom-dark: #000000;

JSON

{
  "hex": "#283288",
  "rgb": {
    "r": 40,
    "g": 50,
    "b": 136
  },
  "hsl": {
    "h": 233.75,
    "s": 54.545,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36628,
    "c": 0.14237,
    "h": 272.2
  },
  "luminance": 0.0451
}

Semantic roles & 50–950 ramp

primary

#283288

secondary

#B4AB58

accent

#CE4ADE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #283288

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

Preview Lab → · Contrast checker → · Palette generator →