#283089#283089

#283089 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.146 H 272.7°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#283089
RGB	rgb(40, 48, 137)
HSL	hsl(235, 55%, 35%)
HSV	hsv(235, 71%, 54%)
CMYK	cmyk(70.8%, 65%, 0%, 46.3%)
CIE-LAB	lab(24.86, 27.78, -50.64)
CIE-LCH	lch(24.86, 57.76, 298.75°)
OKLab	oklab(36.34% 0.007 -0.1462)
OKLCH	oklch(36.34% 0.146 272.7)
XYZ	xyz(6.4459, 4.3706, 24.1660)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283089 #898128

analogous

#286089 #283089 #512889

triadic

#283089 #892830 #308928

tetradic

#283089 #892860 #898128 #288951

square

#283089 #892860 #898128 #288951

split-complementary

#283089 #895128 #608928

monochromatic

#0C0F2A #1A1F5A #283089 #3641B8 #5C66CF

Accessibility & contrast

On white

11.20

#283089 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#283089 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283089

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283089	#FFFFFF	#000000	##FFFFFF
##283089	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408C

Deuteranopia (green-blind)

#003787

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283089;
/* rgb */ color: rgb(40, 48, 137);
/* oklch */ color: oklch(36.3% 0.146 272.7);

Tailwind

colors: {
  custom: {
    50: '#7068ac',
    500: '#283089',
    950: '#000000',
  },
}

SCSS

$custom: #283089;
$custom-light: #7068ac;
$custom-dark: #000000;

JSON

{
  "hex": "#283089",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 137
  },
  "hsl": {
    "h": 235.052,
    "s": 54.802,
    "l": 34.706
  },
  "oklch": {
    "l": 0.36341,
    "c": 0.14634,
    "h": 272.7
  },
  "luminance": 0.04371
}

Semantic roles & 50–950 ramp

primary

#283089

secondary

#B5AD58

accent

#D24ADE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #283089

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

Preview Lab → · Contrast checker → · Palette generator →