#283883#283883

#283883 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.127 H 270.1°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#283883
RGB	rgb(40, 56, 131)
HSL	hsl(229, 53%, 34%)
HSV	hsv(229, 69%, 51%)
CMYK	cmyk(69.5%, 57.3%, 0%, 48.6%)
CIE-LAB	lab(26.50, 20.07, -44.23)
CIE-LCH	lch(26.50, 48.57, 294.40°)
OKLab	oklab(37.4% 0.0001 -0.1272)
OKLCH	oklch(37.4% 0.127 270.1)
XYZ	xyz(6.3846, 4.9176, 22.0810)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283883 #837328

analogous

#286583 #283883 #452883

triadic

#283883 #832838 #388328

tetradic

#283883 #832865 #837328 #288345

square

#283883 #832865 #837328 #288345

split-complementary

#283883 #834528 #658328

monochromatic

#0B1025 #1A2454 #283883 #364CB2 #596DCC

Accessibility & contrast

On white

10.59

#283883 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#283883 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283883

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283883	#FFFFFF	#000000	##FFFFFF
##283883	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #283883;
/* rgb */ color: rgb(40, 56, 131);
/* oklch */ color: oklch(37.4% 0.127 270.1);

Tailwind

colors: {
  custom: {
    50: '#6e6ea8',
    500: '#283883',
    950: '#000000',
  },
}

SCSS

$custom: #283883;
$custom-light: #6e6ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#283883",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 131
  },
  "hsl": {
    "h": 229.451,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.374,
    "c": 0.12724,
    "h": 270.1
  },
  "luminance": 0.04918
}

Semantic roles & 50–950 ramp

primary

#283883

secondary

#B1A155

accent

#C34BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #283883

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

Preview Lab → · Contrast checker → · Palette generator →