#284EA9#284EA9

#284EA9 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.1% C 0.153 H 264.1°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#284EA9
RGB	rgb(40, 78, 169)
HSL	hsl(222, 62%, 41%)
HSV	hsv(222, 76%, 66%)
CMYK	cmyk(76.3%, 53.8%, 0%, 33.7%)
CIE-LAB	lab(35.52, 19.78, -52.78)
CIE-LCH	lch(35.52, 56.36, 290.54°)
OKLab	oklab(45.12% -0.0157 -0.152)
OKLCH	oklch(45.12% 0.153 264.1)
XYZ	xyz(10.7584, 8.7633, 38.6529)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EA9 #A98328

analogous

#288EA9 #284EA9 #4328A9

triadic

#284EA9 #A9284E #4EA928

tetradic

#284EA9 #A9288E #A98328 #28A943

square

#284EA9 #A9288E #A98328 #28A943

split-complementary

#284EA9 #A94328 #8EA928

monochromatic

#112046 #1C3778 #284EA9 #3D69D1 #6F8FDD

Accessibility & contrast

On white

7.63

#284EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#284EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EA9

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EA9	#FFFFFF	#000000	##FFFFFF
##284EA9	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#075AAC

Deuteranopia (green-blind)

#004EA7

Tritanopia (blue-blind)

#006474

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284ea9;
/* rgb */ color: rgb(40, 78, 169);
/* oklch */ color: oklch(45.1% 0.153 264.1);

Tailwind

colors: {
  custom: {
    50: '#757fc3',
    500: '#284ea9',
    950: '#000000',
  },
}

SCSS

$custom: #284ea9;
$custom-light: #757fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#284ea9",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 169
  },
  "hsl": {
    "h": 222.326,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45119,
    "c": 0.15284,
    "h": 264.1
  },
  "luminance": 0.08764
}

Semantic roles & 50–950 ramp

primary

#284EA9

secondary

#C4A969

accent

#B543E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #284EA9

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

Preview Lab → · Contrast checker → · Palette generator →