#284FAE#284FAE

#284FAE is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.158 H 264.2°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#284FAE
RGB	rgb(40, 79, 174)
HSL	hsl(223, 63%, 42%)
HSV	hsv(223, 77%, 68%)
CMYK	cmyk(77%, 54.6%, 0%, 31.8%)
CIE-LAB	lab(36.17, 21.04, -54.70)
CIE-LCH	lch(36.17, 58.61, 291.04°)
OKLab	oklab(45.73% -0.016 -0.1577)
OKLCH	oklch(45.73% 0.158 264.2)
XYZ	xyz(11.3083, 9.0978, 41.1963)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284FAE #AE8728

analogous

#2892AE #284FAE #4428AE

triadic

#284FAE #AE284F #4FAE28

tetradic

#284FAE #AE2892 #AE8728 #28AE44

square

#284FAE #AE2892 #AE8728 #28AE44

split-complementary

#284FAE #AE4428 #92AE28

monochromatic

#11224A #1D387C #284FAE #406BD3 #7291DF

Accessibility & contrast

On white

7.45

#284FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#284FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284FAE

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284FAE	#FFFFFF	#000000	##FFFFFF
##284FAE	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB1

Deuteranopia (green-blind)

#004FAC

Tritanopia (blue-blind)

#006676

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #284fae;
/* rgb */ color: rgb(40, 79, 174);
/* oklch */ color: oklch(45.7% 0.158 264.2);

Tailwind

colors: {
  custom: {
    50: '#767fc7',
    500: '#284fae',
    950: '#000000',
  },
}

SCSS

$custom: #284fae;
$custom-light: #767fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#284fae",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 174
  },
  "hsl": {
    "h": 222.537,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45726,
    "c": 0.15848,
    "h": 264.2
  },
  "luminance": 0.09099
}

Semantic roles & 50–950 ramp

primary

#284FAE

secondary

#C6AC6C

accent

#B642E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #284FAE

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

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