#284EBA#284EBA

#284EBA is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.176 H 265.3°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#284EBA
RGB	rgb(40, 78, 186)
HSL	hsl(224, 65%, 44%)
HSV	hsv(224, 78%, 73%)
CMYK	cmyk(78.5%, 58.1%, 0%, 27.1%)
CIE-LAB	lab(36.82, 26.30, -60.73)
CIE-LCH	lch(36.82, 66.18, 293.42°)
OKLab	oklab(46.51% -0.0145 -0.1754)
OKLCH	oklch(46.51% 0.176 265.3)
XYZ	xyz(12.4593, 9.4436, 47.6110)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EBA #BA9428

analogous

#2897BA #284EBA #4B28BA

triadic

#284EBA #BA284E #4EBA28

tetradic

#284EBA #BA2897 #BA9428 #28BA4B

square

#284EBA #BA2897 #BA9428 #28BA4B

split-complementary

#284EBA #BA4B28 #97BA28

monochromatic

#122455 #1D3988 #284EBA #486DD8 #7A95E2

Accessibility & contrast

On white

7.27

#284EBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#284EBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EBA

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EBA	#FFFFFF	#000000	##FFFFFF
##284EBA	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBE

Deuteranopia (green-blind)

#0050B8

Tritanopia (blue-blind)

#00697C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #284eba;
/* rgb */ color: rgb(40, 78, 186);
/* oklch */ color: oklch(46.5% 0.176 265.3);

Tailwind

colors: {
  custom: {
    50: '#797fd0',
    500: '#284eba',
    950: '#000000',
  },
}

SCSS

$custom: #284eba;
$custom-light: #797fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#284eba",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 186
  },
  "hsl": {
    "h": 224.384,
    "s": 64.602,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46508,
    "c": 0.17599,
    "h": 265.3
  },
  "luminance": 0.09445
}

Semantic roles & 50–950 ramp

primary

#284EBA

secondary

#CAB473

accent

#BC40E8

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #284EBA

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

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