#283490#283490

#283490 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.7% C 0.151 H 271.3°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#283490
RGB	rgb(40, 52, 144)
HSL	hsl(233, 57%, 36%)
HSV	hsv(233, 72%, 56%)
CMYK	cmyk(72.2%, 63.9%, 0%, 43.5%)
CIE-LAB	lab(26.51, 27.71, -52.29)
CIE-LCH	lch(26.51, 59.18, 297.92°)
OKLab	oklab(37.74% 0.0036 -0.151)
OKLCH	oklch(37.74% 0.151 271.3)
XYZ	xyz(7.1354, 4.9200, 26.9538)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283490 #908428

analogous

#286890 #283490 #502890

triadic

#283490 #902834 #349028

tetradic

#283490 #902868 #908428 #289050

square

#283490 #902868 #908428 #289050

split-complementary

#283490 #905028 #689028

monochromatic

#0D1130 #1B2360 #283490 #3545C0 #606DD3

Accessibility & contrast

On white

10.58

#283490 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#283490 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283490

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283490	#FFFFFF	#000000	##FFFFFF
##283490	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004493

Deuteranopia (green-blind)

#003A8E

Tritanopia (blue-blind)

#004C5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #283490;
/* rgb */ color: rgb(40, 52, 144);
/* oklch */ color: oklch(37.7% 0.151 271.3);

Tailwind

colors: {
  custom: {
    50: '#716bb1',
    500: '#283490',
    950: '#000000',
  },
}

SCSS

$custom: #283490;
$custom-light: #716bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#283490",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 144
  },
  "hsl": {
    "h": 233.077,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37743,
    "c": 0.15102,
    "h": 271.3
  },
  "luminance": 0.04921
}

Semantic roles & 50–950 ramp

primary

#283490

secondary

#B8AE5C

accent

#CE48E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #283490

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

Preview Lab → · Contrast checker → · Palette generator →