#284EA8#284EA8

#284EA8 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.151 H 264.0°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#284EA8
RGB	rgb(40, 78, 168)
HSL	hsl(222, 62%, 41%)
HSV	hsv(222, 76%, 66%)
CMYK	cmyk(76.2%, 53.6%, 0%, 34.1%)
CIE-LAB	lab(35.45, 19.39, -52.30)
CIE-LCH	lch(35.45, 55.78, 290.34°)
OKLab	oklab(45.04% -0.0158 -0.1506)
OKLCH	oklch(45.04% 0.151 264)
XYZ	xyz(10.6648, 8.7259, 38.1604)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284EA8 #A88228

analogous

#288EA8 #284EA8 #4228A8

triadic

#284EA8 #A8284E #4EA828

tetradic

#284EA8 #A8288E #A88228 #28A842

square

#284EA8 #A8288E #A88228 #28A842

split-complementary

#284EA8 #A84228 #8EA828

monochromatic

#102045 #1C3777 #284EA8 #3D68D1 #6E8FDC

Accessibility & contrast

On white

7.65

#284EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#284EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284EA8

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284EA8	#FFFFFF	#000000	##FFFFFF
##284EA8	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B5AAB

Deuteranopia (green-blind)

#004EA6

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #284ea8;
/* rgb */ color: rgb(40, 78, 168);
/* oklch */ color: oklch(45.0% 0.151 264.0);

Tailwind

colors: {
  custom: {
    50: '#757fc2',
    500: '#284ea8',
    950: '#000000',
  },
}

SCSS

$custom: #284ea8;
$custom-light: #757fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#284ea8",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 168
  },
  "hsl": {
    "h": 222.188,
    "s": 61.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.4504,
    "c": 0.15145,
    "h": 264
  },
  "luminance": 0.08727
}

Semantic roles & 50–950 ramp

primary

#284EA8

secondary

#C3A869

accent

#B543E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #284EA8

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

Preview Lab → · Contrast checker → · Palette generator →