#284DAE#284DAE

#284DAE is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.161 H 264.8°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#284DAE
RGB	rgb(40, 77, 174)
HSL	hsl(223, 63%, 42%)
HSV	hsv(223, 77%, 68%)
CMYK	cmyk(77%, 55.7%, 0%, 31.8%)
CIE-LAB	lab(35.62, 22.37, -55.59)
CIE-LCH	lch(35.62, 59.93, 291.92°)
OKLab	oklab(45.31% -0.0145 -0.1603)
OKLCH	oklch(45.31% 0.161 264.8)
XYZ	xyz(11.1662, 8.8136, 41.1489)
Luminance	0.0882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DAE #AE8928

analogous

#2890AE #284DAE #4628AE

triadic

#284DAE #AE284D #4DAE28

tetradic

#284DAE #AE2890 #AE8928 #28AE46

square

#284DAE #AE2890 #AE8928 #28AE46

split-complementary

#284DAE #AE4628 #90AE28

monochromatic

#11214A #1D377C #284DAE #4069D3 #7290DF

Accessibility & contrast

On white

7.60

#284DAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#284DAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DAE

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DAE	#FFFFFF	#000000	##FFFFFF
##284DAE	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB1

Deuteranopia (green-blind)

#004EAC

Tritanopia (blue-blind)

#006576

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284dae;
/* rgb */ color: rgb(40, 77, 174);
/* oklch */ color: oklch(45.3% 0.161 264.8);

Tailwind

colors: {
  custom: {
    50: '#767ec7',
    500: '#284dae',
    950: '#000000',
  },
}

SCSS

$custom: #284dae;
$custom-light: #767ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#284dae",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 174
  },
  "hsl": {
    "h": 223.433,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45312,
    "c": 0.16099,
    "h": 264.8
  },
  "luminance": 0.08815
}

Semantic roles & 50–950 ramp

primary

#284DAE

secondary

#C6AD6C

accent

#B942E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284DAE

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

Preview Lab → · Contrast checker → · Palette generator →