#284BBC#284BBC

#284BBC is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.1% C 0.182 H 266.1°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#284BBC
RGB	rgb(40, 75, 188)
HSL	hsl(226, 65%, 45%)
HSV	hsv(226, 79%, 74%)
CMYK	cmyk(78.7%, 60.1%, 0%, 26.3%)
CIE-LAB	lab(36.20, 29.03, -62.92)
CIE-LCH	lch(36.20, 69.29, 294.77°)
OKLab	oklab(46.09% -0.0125 -0.1819)
OKLCH	oklch(46.09% 0.182 266.1)
XYZ	xyz(12.4651, 9.1127, 48.6692)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BBC #BC9928

analogous

#2895BC #284BBC #4F28BC

triadic

#284BBC #BC284B #4BBC28

tetradic

#284BBC #BC2895 #BC9928 #28BC4F

square

#284BBC #BC2895 #BC9928 #28BC4F

split-complementary

#284BBC #BC4F28 #95BC28

monochromatic

#132357 #1D378A #284BBC #496BD8 #7B94E3

Accessibility & contrast

On white

7.44

#284BBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#284BBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BBC

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BBC	#FFFFFF	#000000	##FFFFFF
##284BBC	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CC0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #284bbc;
/* rgb */ color: rgb(40, 75, 188);
/* oklch */ color: oklch(46.1% 0.182 266.1);

Tailwind

colors: {
  custom: {
    50: '#7a7cd1',
    500: '#284bbc',
    950: '#000000',
  },
}

SCSS

$custom: #284bbc;
$custom-light: #7a7cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#284bbc",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 188
  },
  "hsl": {
    "h": 225.811,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46092,
    "c": 0.1823,
    "h": 266.1
  },
  "luminance": 0.09114
}

Semantic roles & 50–950 ramp

primary

#284BBC

secondary

#CBB775

accent

#C040E8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #284BBC

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

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