#283283#283283

#283283 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.135 H 272.3°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#283283
RGB	rgb(40, 50, 131)
HSL	hsl(233, 53%, 34%)
HSV	hsv(233, 69%, 51%)
CMYK	cmyk(69.5%, 61.8%, 0%, 48.6%)
CIE-LAB	lab(24.86, 24.19, -46.89)
CIE-LCH	lch(24.86, 52.76, 297.28°)
OKLab	oklab(36.18% 0.0055 -0.1351)
OKLCH	oklch(36.18% 0.135 272.3)
XYZ	xyz(6.1110, 4.3704, 21.9899)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283283 #837928

analogous

#285F83 #283283 #4B2883

triadic

#283283 #832832 #328328

tetradic

#283283 #83285F #837928 #28834B

square

#283283 #83285F #837928 #28834B

split-complementary

#283283 #834B28 #5F8328

monochromatic

#0B0E25 #1A2054 #283283 #3644B2 #5966CC

Accessibility & contrast

On white

11.20

#283283 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#283283 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283283

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283283	#FFFFFF	#000000	##FFFFFF
##283283	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F86

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283283;
/* rgb */ color: rgb(40, 50, 131);
/* oklch */ color: oklch(36.2% 0.135 272.3);

Tailwind

colors: {
  custom: {
    50: '#6e69a8',
    500: '#283283',
    950: '#000000',
  },
}

SCSS

$custom: #283283;
$custom-light: #6e69a8;
$custom-dark: #000000;

JSON

{
  "hex": "#283283",
  "rgb": {
    "r": 40,
    "g": 50,
    "b": 131
  },
  "hsl": {
    "h": 233.407,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36178,
    "c": 0.13526,
    "h": 272.3
  },
  "luminance": 0.04371
}

Semantic roles & 50–950 ramp

primary

#283283

secondary

#B1A755

accent

#CD4BDD

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #283283

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

Preview Lab → · Contrast checker → · Palette generator →