#283573#283573

#283573 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.5% C 0.107 H 271.1°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#283573
RGB	rgb(40, 53, 115)
HSL	hsl(230, 48%, 30%)
HSV	hsv(230, 65%, 45%)
CMYK	cmyk(65.2%, 53.9%, 0%, 54.9%)
CIE-LAB	lab(24.43, 16.04, -37.47)
CIE-LCH	lch(24.43, 40.76, 293.17°)
OKLab	oklab(35.46% 0.002 -0.1074)
OKLCH	oklch(35.46% 0.107 271.1)
XYZ	xyz(5.2416, 4.2347, 16.7575)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283573 #736628

analogous

#285A73 #283573 #402873

triadic

#283573 #732835 #357328

tetradic

#283573 #73285A #736628 #287340

square

#283573 #73285A #736628 #287340

split-complementary

#283573 #734028 #5A7328

monochromatic

#080B18 #182046 #283573 #384AA0 #5266C3

Accessibility & contrast

On white

11.37

#283573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#283573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283573

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283573	#FFFFFF	#000000	##FFFFFF
##283573	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113E75

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #283573;
/* rgb */ color: rgb(40, 53, 115);
/* oklch */ color: oklch(35.5% 0.107 271.1);

Tailwind

colors: {
  custom: {
    50: '#6a6b9c',
    500: '#283573',
    950: '#000000',
  },
}

SCSS

$custom: #283573;
$custom-light: #6a6b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#283573",
  "rgb": {
    "r": 40,
    "g": 53,
    "b": 115
  },
  "hsl": {
    "h": 229.6,
    "s": 48.387,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3546,
    "c": 0.10741,
    "h": 271.1
  },
  "luminance": 0.04235
}

Semantic roles & 50–950 ramp

primary

#283573

secondary

#A59752

accent

#C050D8

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #283573

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

Preview Lab → · Contrast checker → · Palette generator →