#284BAF#284BAF

#284BAF is a dark, vivid blue. Relative luminance 0.086; OKLCH L 45.0% C 0.165 H 265.5°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#284BAF
RGB	rgb(40, 75, 175)
HSL	hsl(224, 63%, 42%)
HSV	hsv(224, 77%, 69%)
CMYK	cmyk(77.1%, 57.1%, 0%, 31.4%)
CIE-LAB	lab(35.16, 24.09, -56.94)
CIE-LCH	lch(35.16, 61.83, 292.93°)
OKLab	oklab(44.99% -0.013 -0.1643)
OKLCH	oklch(44.99% 0.165 265.5)
XYZ	xyz(11.1263, 8.5772, 41.6183)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BAF #AF8C28

analogous

#288FAF #284BAF #4828AF

triadic

#284BAF #AF284B #4BAF28

tetradic

#284BAF #AF288F #AF8C28 #28AF48

square

#284BAF #AF288F #AF8C28 #28AF48

split-complementary

#284BAF #AF4828 #8FAF28

monochromatic

#11204B #1D367D #284BAF #4167D4 #738FDF

Accessibility & contrast

On white

7.73

#284BAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#284BAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BAF

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BAF	#FFFFFF	#000000	##FFFFFF
##284BAF	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B2

Deuteranopia (green-blind)

#004DAD

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #284baf;
/* rgb */ color: rgb(40, 75, 175);
/* oklch */ color: oklch(45.0% 0.165 265.5);

Tailwind

colors: {
  custom: {
    50: '#777cc8',
    500: '#284baf',
    950: '#000000',
  },
}

SCSS

$custom: #284baf;
$custom-light: #777cc8;
$custom-dark: #000000;

JSON

{
  "hex": "#284baf",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 175
  },
  "hsl": {
    "h": 224.444,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44985,
    "c": 0.16484,
    "h": 265.5
  },
  "luminance": 0.08578
}

Semantic roles & 50–950 ramp

primary

#284BAF

secondary

#C6AF6D

accent

#BB42E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284BAF

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

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