#283890#283890

#283890 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.146 H 270.2°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#283890
RGB	rgb(40, 56, 144)
HSL	hsl(231, 57%, 36%)
HSV	hsv(231, 72%, 56%)
CMYK	cmyk(72.2%, 61.1%, 0%, 43.5%)
CIE-LAB	lab(27.55, 25.02, -50.59)
CIE-LCH	lch(27.55, 56.44, 296.32°)
OKLab	oklab(38.52% 0.0004 -0.1459)
OKLCH	oklch(38.52% 0.146 270.2)
XYZ	xyz(7.3216, 5.2923, 27.0158)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283890 #908028

analogous

#286C90 #283890 #4C2890

triadic

#283890 #902838 #389028

tetradic

#283890 #90286C #908028 #28904C

square

#283890 #90286C #908028 #28904C

split-complementary

#283890 #904C28 #6C9028

monochromatic

#0D1330 #1B2560 #283890 #354BC0 #6071D3

Accessibility & contrast

On white

10.20

#283890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#283890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283890

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283890	#FFFFFF	#000000	##FFFFFF
##283890	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004693

Deuteranopia (green-blind)

#003C8E

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #283890;
/* rgb */ color: rgb(40, 56, 144);
/* oklch */ color: oklch(38.5% 0.146 270.2);

Tailwind

colors: {
  custom: {
    50: '#716eb1',
    500: '#283890',
    950: '#000000',
  },
}

SCSS

$custom: #283890;
$custom-light: #716eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#283890",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 144
  },
  "hsl": {
    "h": 230.769,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.38517,
    "c": 0.14592,
    "h": 270.2
  },
  "luminance": 0.05293
}

Semantic roles & 50–950 ramp

primary

#283890

secondary

#B8AA5C

accent

#C848E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283890

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

Preview Lab → · Contrast checker → · Palette generator →