#284DB7#284DB7

#284DB7 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.1% C 0.173 H 265.4°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#284DB7
RGB	rgb(40, 77, 183)
HSL	hsl(224, 64%, 44%)
HSV	hsv(224, 78%, 72%)
CMYK	cmyk(78.1%, 57.9%, 0%, 28.2%)
CIE-LAB	lab(36.32, 25.82, -59.78)
CIE-LCH	lch(36.32, 65.12, 293.36°)
OKLab	oklab(46.06% -0.014 -0.1726)
OKLCH	oklch(46.06% 0.173 265.4)
XYZ	xyz(12.0732, 9.1764, 45.9255)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DB7 #B79228

analogous

#2894B7 #284DB7 #4B28B7

triadic

#284DB7 #B7284D #4DB728

tetradic

#284DB7 #B72894 #B79228 #28B74B

square

#284DB7 #B72894 #B79228 #28B74B

split-complementary

#284DB7 #B74B28 #94B728

monochromatic

#122353 #1D3885 #284DB7 #466BD6 #7893E1

Accessibility & contrast

On white

7.41

#284DB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#284DB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DB7

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DB7	#FFFFFF	#000000	##FFFFFF
##284DB7	1.00	7.41	2.84	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBB

Deuteranopia (green-blind)

#004FB5

Tritanopia (blue-blind)

#00687A

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #284db7;
/* rgb */ color: rgb(40, 77, 183);
/* oklch */ color: oklch(46.1% 0.173 265.4);

Tailwind

colors: {
  custom: {
    50: '#797ecd',
    500: '#284db7',
    950: '#000000',
  },
}

SCSS

$custom: #284db7;
$custom-light: #797ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#284db7",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 183
  },
  "hsl": {
    "h": 224.476,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46057,
    "c": 0.1732,
    "h": 265.4
  },
  "luminance": 0.09178
}

Semantic roles & 50–950 ramp

primary

#284DB7

secondary

#C9B372

accent

#BC41E7

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0914

muted

#7C7B82

Preview Lab

Preview with #284DB7

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

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