#283F93#283F93

#283F93 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.2% C 0.141 H 267.9°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#283F93
RGB	rgb(40, 63, 147)
HSL	hsl(227, 57%, 37%)
HSV	hsv(227, 73%, 58%)
CMYK	cmyk(72.8%, 57.1%, 0%, 42.4%)
CIE-LAB	lab(29.69, 21.41, -48.95)
CIE-LCH	lch(29.69, 53.42, 293.63°)
OKLab	oklab(40.19% -0.0052 -0.141)
OKLCH	oklch(40.19% 0.141 267.9)
XYZ	xyz(7.9172, 6.1119, 28.3606)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F93 #937C28

analogous

#287593 #283F93 #472893

triadic

#283F93 #93283F #3F9328

tetradic

#283F93 #932875 #937C28 #289347

square

#283F93 #932875 #937C28 #289347

split-complementary

#283F93 #934728 #759328

monochromatic

#0E1633 #1B2A63 #283F93 #3554C3 #617AD4

Accessibility & contrast

On white

9.45

#283F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#283F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F93

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F93	#FFFFFF	#000000	##FFFFFF
##283F93	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B96

Deuteranopia (green-blind)

#004191

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #283f93;
/* rgb */ color: rgb(40, 63, 147);
/* oklch */ color: oklch(40.2% 0.141 267.9);

Tailwind

colors: {
  custom: {
    50: '#7173b3',
    500: '#283f93',
    950: '#000000',
  },
}

SCSS

$custom: #283f93;
$custom-light: #7173b3;
$custom-dark: #000000;

JSON

{
  "hex": "#283f93",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 147
  },
  "hsl": {
    "h": 227.103,
    "s": 57.219,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40192,
    "c": 0.14111,
    "h": 267.9
  },
  "luminance": 0.06113
}

Semantic roles & 50–950 ramp

primary

#283F93

secondary

#BAA65D

accent

#C047E0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #283F93

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

Preview Lab → · Contrast checker → · Palette generator →