#284A90#284A90

#284A90 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.3% C 0.122 H 262.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#284A90
RGB	rgb(40, 74, 144)
HSL	hsl(220, 57%, 36%)
HSV	hsv(220, 72%, 56%)
CMYK	cmyk(72.2%, 48.6%, 0%, 43.5%)
CIE-LAB	lab(32.62, 12.78, -42.39)
CIE-LCH	lch(32.62, 44.27, 286.77°)
OKLab	oklab(42.34% -0.0153 -0.1215)
OKLCH	oklch(42.34% 0.122 262.8)
XYZ	xyz(8.3561, 7.3614, 27.3607)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284A90 #906E28

analogous

#287E90 #284A90 #3A2890

triadic

#284A90 #90284A #4A9028

tetradic

#284A90 #90287E #906E28 #28903A

square

#284A90 #90287E #906E28 #28903A

split-complementary

#284A90 #903A28 #7E9028

monochromatic

#0D1930 #1B3160 #284A90 #3563C0 #6085D3

Accessibility & contrast

On white

8.49

#284A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#284A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284A90

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284A90	#FFFFFF	#000000	##FFFFFF
##284A90	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255293

Deuteranopia (green-blind)

#0A488F

Tritanopia (blue-blind)

#005A66

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284a90;
/* rgb */ color: rgb(40, 74, 144);
/* oklch */ color: oklch(42.3% 0.122 262.8);

Tailwind

colors: {
  custom: {
    50: '#707cb1',
    500: '#284a90',
    950: '#000000',
  },
}

SCSS

$custom: #284a90;
$custom-light: #707cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#284a90",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 144
  },
  "hsl": {
    "h": 220.385,
    "s": 56.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42341,
    "c": 0.12249,
    "h": 262.8
  },
  "luminance": 0.07362
}

Semantic roles & 50–950 ramp

primary

#284A90

secondary

#B89A5C

accent

#AE48E0

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080911

muted

#7B7B80

Preview Lab

Preview with #284A90

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

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