#284CBA#284CBA

#284CBA is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.1% C 0.178 H 265.8°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#284CBA
RGB	rgb(40, 76, 186)
HSL	hsl(225, 65%, 44%)
HSV	hsv(225, 78%, 73%)
CMYK	cmyk(78.5%, 59.1%, 0%, 27.1%)
CIE-LAB	lab(36.30, 27.62, -61.58)
CIE-LCH	lch(36.30, 67.49, 294.15°)
OKLab	oklab(46.11% -0.0132 -0.1779)
OKLCH	oklch(46.11% 0.178 265.8)
XYZ	xyz(12.3193, 9.1638, 47.5644)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284CBA #BA9628

analogous

#2895BA #284CBA #4D28BA

triadic

#284CBA #BA284C #4CBA28

tetradic

#284CBA #BA2895 #BA9628 #28BA4D

square

#284CBA #BA2895 #BA9628 #28BA4D

split-complementary

#284CBA #BA4D28 #95BA28

monochromatic

#122355 #1D3788 #284CBA #486BD8 #7A94E2

Accessibility & contrast

On white

7.41

#284CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#284CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284CBA

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284CBA	#FFFFFF	#000000	##FFFFFF
##284CBA	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBE

Deuteranopia (green-blind)

#004FB8

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #284cba;
/* rgb */ color: rgb(40, 76, 186);
/* oklch */ color: oklch(46.1% 0.178 265.8);

Tailwind

colors: {
  custom: {
    50: '#797dd0',
    500: '#284cba',
    950: '#000000',
  },
}

SCSS

$custom: #284cba;
$custom-light: #797dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#284cba",
  "rgb": {
    "r": 40,
    "g": 76,
    "b": 186
  },
  "hsl": {
    "h": 225.205,
    "s": 64.602,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46114,
    "c": 0.17844,
    "h": 265.8
  },
  "luminance": 0.09165
}

Semantic roles & 50–950 ramp

primary

#284CBA

secondary

#CAB573

accent

#BE40E8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #284CBA

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

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