#284CBC#284CBC

#284CBC is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.181 H 265.8°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#284CBC
RGB	rgb(40, 76, 188)
HSL	hsl(225, 65%, 45%)
HSV	hsv(225, 79%, 74%)
CMYK	cmyk(78.7%, 59.6%, 0%, 26.3%)
CIE-LAB	lab(36.46, 28.37, -62.49)
CIE-LCH	lch(36.46, 68.63, 294.42°)
OKLab	oklab(46.29% -0.0132 -0.1806)
OKLCH	oklch(46.29% 0.181 265.8)
XYZ	xyz(12.5334, 9.2494, 48.6920)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284CBC #BC9828

analogous

#2896BC #284CBC #4E28BC

triadic

#284CBC #BC284C #4CBC28

tetradic

#284CBC #BC2896 #BC9828 #28BC4E

square

#284CBC #BC2896 #BC9828 #28BC4E

split-complementary

#284CBC #BC4E28 #96BC28

monochromatic

#132357 #1D388A #284CBC #496CD8 #7B95E3

Accessibility & contrast

On white

7.37

#284CBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#284CBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284CBC

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284CBC	#FFFFFF	#000000	##FFFFFF
##284CBC	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #284cbc;
/* rgb */ color: rgb(40, 76, 188);
/* oklch */ color: oklch(46.3% 0.181 265.8);

Tailwind

colors: {
  custom: {
    50: '#7a7dd1',
    500: '#284cbc',
    950: '#000000',
  },
}

SCSS

$custom: #284cbc;
$custom-light: #7a7dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#284cbc",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 188
  },
  "hsl": {
    "h": 225.405,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46286,
    "c": 0.1811,
    "h": 265.8
  },
  "luminance": 0.09251
}

Semantic roles & 50–950 ramp

primary

#284CBC

secondary

#CBB675

accent

#BF40E8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #284CBC

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

Preview Lab → · Contrast checker → · Palette generator →