#283480#283480

#283480 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.128 H 271.7°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#283480
RGB	rgb(40, 52, 128)
HSL	hsl(232, 52%, 33%)
HSV	hsv(232, 69%, 50%)
CMYK	cmyk(68.8%, 59.4%, 0%, 49.8%)
CIE-LAB	lab(25.15, 21.68, -44.53)
CIE-LCH	lch(25.15, 49.53, 295.96°)
OKLab	oklab(36.32% 0.0037 -0.1282)
OKLCH	oklch(36.32% 0.128 271.7)
XYZ	xyz(5.9980, 4.4651, 20.9636)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283480 #807428

analogous

#286080 #283480 #482880

triadic

#283480 #802834 #348028

tetradic

#283480 #802860 #807428 #288048

square

#283480 #802860 #807428 #288048

split-complementary

#283480 #804828 #608028

monochromatic

#0B0E23 #192151 #283480 #3747AF #5867CB

Accessibility & contrast

On white

11.09

#283480 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#283480 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283480

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283480	#FFFFFF	#000000	##FFFFFF
##283480	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004083

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #283480;
/* rgb */ color: rgb(40, 52, 128);
/* oklch */ color: oklch(36.3% 0.128 271.7);

Tailwind

colors: {
  custom: {
    50: '#6d6ba5',
    500: '#283480',
    950: '#000000',
  },
}

SCSS

$custom: #283480;
$custom-light: #6d6ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#283480",
  "rgb": {
    "r": 40,
    "g": 52,
    "b": 128
  },
  "hsl": {
    "h": 231.818,
    "s": 52.381,
    "l": 32.941
  },
  "oklch": {
    "l": 0.36318,
    "c": 0.12824,
    "h": 271.7
  },
  "luminance": 0.04466
}

Semantic roles & 50–950 ramp

primary

#283480

secondary

#B0A354

accent

#C84CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #283480

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

Preview Lab → · Contrast checker → · Palette generator →