#284EB7#284EB7

#284EB7 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.172 H 265.1°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#284EB7
RGB	rgb(40, 78, 183)
HSL	hsl(224, 64%, 44%)
HSV	hsv(224, 78%, 72%)
CMYK	cmyk(78.1%, 57.4%, 0%, 28.2%)
CIE-LAB	lab(36.59, 25.16, -59.35)
CIE-LCH	lch(36.59, 64.46, 292.97°)
OKLab	oklab(46.26% -0.0147 -0.1713)
OKLCH	oklch(46.26% 0.172 265.1)
XYZ	xyz(12.1437, 9.3174, 45.9490)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EB7 #B79128

analogous

#2895B7 #284EB7 #4928B7

triadic

#284EB7 #B7284E #4EB728

tetradic

#284EB7 #B72895 #B79128 #28B749

square

#284EB7 #B72895 #B79128 #28B749

split-complementary

#284EB7 #B74928 #95B728

monochromatic

#122353 #1D3985 #284EB7 #466CD6 #7894E1

Accessibility & contrast

On white

7.33

#284EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#284EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EB7

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EB7	#FFFFFF	#000000	##FFFFFF
##284EB7	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBB

Deuteranopia (green-blind)

#0050B5

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #284eb7;
/* rgb */ color: rgb(40, 78, 183);
/* oklch */ color: oklch(46.3% 0.172 265.1);

Tailwind

colors: {
  custom: {
    50: '#787fcd',
    500: '#284eb7',
    950: '#000000',
  },
}

SCSS

$custom: #284eb7;
$custom-light: #787fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#284eb7",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 183
  },
  "hsl": {
    "h": 224.056,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46257,
    "c": 0.17197,
    "h": 265.1
  },
  "luminance": 0.09319
}

Semantic roles & 50–950 ramp

primary

#284EB7

secondary

#C9B272

accent

#BB41E7

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0A14

muted

#7C7C82

Preview Lab

Preview with #284EB7

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

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