#284DBD#284DBD

#284DBD is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.6% C 0.181 H 265.6°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#284DBD
RGB	rgb(40, 77, 189)
HSL	hsl(225, 65%, 45%)
HSV	hsv(225, 79%, 74%)
CMYK	cmyk(78.8%, 59.3%, 0%, 25.9%)
CIE-LAB	lab(36.80, 28.10, -62.52)
CIE-LCH	lch(36.80, 68.55, 294.20°)
OKLab	oklab(46.57% -0.0138 -0.1807)
OKLCH	oklch(46.57% 0.181 265.6)
XYZ	xyz(12.7110, 9.4315, 49.2848)
Luminance	0.0943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DBD #BD9828

analogous

#2897BD #284DBD #4E28BD

triadic

#284DBD #BD284D #4DBD28

tetradic

#284DBD #BD2897 #BD9828 #28BD4E

square

#284DBD #BD2897 #BD9828 #28BD4E

split-complementary

#284DBD #BD4E28 #97BD28

monochromatic

#132458 #1D388A #284DBD #4A6DD9 #7C96E3

Accessibility & contrast

On white

7.27

#284DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#284DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DBD

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DBD	#FFFFFF	#000000	##FFFFFF
##284DBD	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)

#005EC1

Deuteranopia (green-blind)

#0050BB

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #284dbd;
/* rgb */ color: rgb(40, 77, 189);
/* oklch */ color: oklch(46.6% 0.181 265.6);

Tailwind

colors: {
  custom: {
    50: '#7a7ed2',
    500: '#284dbd',
    950: '#000000',
  },
}

SCSS

$custom: #284dbd;
$custom-light: #7a7ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#284dbd",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 189
  },
  "hsl": {
    "h": 225.101,
    "s": 65.066,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46566,
    "c": 0.1812,
    "h": 265.6
  },
  "luminance": 0.09433
}

Semantic roles & 50–950 ramp

primary

#284DBD

secondary

#CBB675

accent

#BE40E8

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #284DBD

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

Preview Lab → · Contrast checker → · Palette generator →