#283189#283189

#283189 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.145 H 272.4°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#283189
RGB	rgb(40, 49, 137)
HSL	hsl(234, 55%, 35%)
HSV	hsv(234, 71%, 54%)
CMYK	cmyk(70.8%, 64.2%, 0%, 46.3%)
CIE-LAB	lab(25.12, 27.11, -50.22)
CIE-LCH	lch(25.12, 57.07, 298.36°)
OKLab	oklab(36.53% 0.0062 -0.1449)
OKLCH	oklch(36.53% 0.145 272.4)
XYZ	xyz(6.4872, 4.4533, 24.1797)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283189 #898028

analogous

#286289 #283189 #502889

triadic

#283189 #892831 #318928

tetradic

#283189 #892862 #898028 #288950

square

#283189 #892862 #898028 #288950

split-complementary

#283189 #895028 #628928

monochromatic

#0C0F2A #1A205A #283189 #3642B8 #5C67CF

Accessibility & contrast

On white

11.11

#283189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#283189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283189

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283189	#FFFFFF	#000000	##FFFFFF
##283189	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003787

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283189;
/* rgb */ color: rgb(40, 49, 137);
/* oklch */ color: oklch(36.5% 0.145 272.4);

Tailwind

colors: {
  custom: {
    50: '#7069ac',
    500: '#283189',
    950: '#000000',
  },
}

SCSS

$custom: #283189;
$custom-light: #7069ac;
$custom-dark: #000000;

JSON

{
  "hex": "#283189",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 137
  },
  "hsl": {
    "h": 234.433,
    "s": 54.802,
    "l": 34.706
  },
  "oklch": {
    "l": 0.36529,
    "c": 0.14506,
    "h": 272.4
  },
  "luminance": 0.04454
}

Semantic roles & 50–950 ramp

primary

#283189

secondary

#B5AC58

accent

#D04ADE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #283189

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

Preview Lab → · Contrast checker → · Palette generator →