#284AAA#284AAA

#284AAA is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.159 H 265.5°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#284AAA
RGB	rgb(40, 74, 170)
HSL	hsl(224, 62%, 41%)
HSV	hsv(224, 76%, 67%)
CMYK	cmyk(76.5%, 56.5%, 0%, 33.3%)
CIE-LAB	lab(34.50, 22.84, -55.04)
CIE-LCH	lch(34.50, 59.59, 292.53°)
OKLab	oklab(44.37% -0.0125 -0.1587)
OKLCH	oklch(44.37% 0.159 265.5)
XYZ	xyz(10.5770, 8.2498, 39.0573)
Luminance	0.0825 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284AAA #AA8828

analogous

#288BAA #284AAA #4728AA

triadic

#284AAA #AA284A #4AAA28

tetradic

#284AAA #AA288B #AA8828 #28AA47

square

#284AAA #AA288B #AA8828 #28AA47

split-complementary

#284AAA #AA4728 #8BAA28

monochromatic

#111F47 #1C3478 #284AAA #3E64D2 #6F8CDD

Accessibility & contrast

On white

7.92

#284AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#284AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284AAA

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284AAA	#FFFFFF	#000000	##FFFFFF
##284AAA	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #284aaa;
/* rgb */ color: rgb(40, 74, 170);
/* oklch */ color: oklch(44.4% 0.159 265.5);

Tailwind

colors: {
  custom: {
    50: '#767cc4',
    500: '#284aaa',
    950: '#000000',
  },
}

SCSS

$custom: #284aaa;
$custom-light: #767cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#284aaa",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 170
  },
  "hsl": {
    "h": 224.308,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.44367,
    "c": 0.15925,
    "h": 265.5
  },
  "luminance": 0.08251
}

Semantic roles & 50–950 ramp

primary

#284AAA

secondary

#C4AC6A

accent

#BB43E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284AAA

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

Preview Lab → · Contrast checker → · Palette generator →