#284DAD#284DAD

#284DAD is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.2% C 0.160 H 264.8°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#284DAD
RGB	rgb(40, 77, 173)
HSL	hsl(223, 62%, 42%)
HSV	hsv(223, 77%, 68%)
CMYK	cmyk(76.9%, 55.5%, 0%, 32.2%)
CIE-LAB	lab(35.55, 21.99, -55.12)
CIE-LCH	lch(35.55, 59.35, 291.74°)
OKLab	oklab(45.23% -0.0146 -0.1589)
OKLCH	oklch(45.23% 0.16 264.8)
XYZ	xyz(11.0691, 8.7748, 40.6374)
Luminance	0.0878 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DAD #AD8828

analogous

#2890AD #284DAD #4628AD

triadic

#284DAD #AD284D #4DAD28

tetradic

#284DAD #AD2890 #AD8828 #28AD46

square

#284DAD #AD2890 #AD8828 #28AD46

split-complementary

#284DAD #AD4628 #90AD28

monochromatic

#11214A #1D377B #284DAD #3F68D3 #7190DE

Accessibility & contrast

On white

7.62

#284DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#284DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DAD

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DAD	#FFFFFF	#000000	##FFFFFF
##284DAD	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB0

Deuteranopia (green-blind)

#004EAB

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284dad;
/* rgb */ color: rgb(40, 77, 173);
/* oklch */ color: oklch(45.2% 0.160 264.8);

Tailwind

colors: {
  custom: {
    50: '#767ec6',
    500: '#284dad',
    950: '#000000',
  },
}

SCSS

$custom: #284dad;
$custom-light: #767ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#284dad",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 173
  },
  "hsl": {
    "h": 223.308,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.4523,
    "c": 0.15961,
    "h": 264.8
  },
  "luminance": 0.08776
}

Semantic roles & 50–950 ramp

primary

#284DAD

secondary

#C5AC6C

accent

#B842E6

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284DAD

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

Preview Lab → · Contrast checker → · Palette generator →