#284ED1#284ED1

#284ED1 is a mid, highly saturated blue. Relative luminance 0.105; OKLCH L 48.5% C 0.206 H 266.0°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#284ED1
RGB	rgb(40, 78, 209)
HSL	hsl(227, 68%, 49%)
HSV	hsv(227, 81%, 82%)
CMYK	cmyk(80.9%, 62.7%, 0%, 18%)
CIE-LAB	lab(38.73, 34.93, -71.00)
CIE-LCH	lch(38.73, 79.13, 296.19°)
OKLab	oklab(48.52% -0.0142 -0.2055)
OKLCH	oklch(48.52% 0.206 266)
XYZ	xyz(15.1040, 10.5015, 61.5402)
Luminance	0.1050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284ED1 #D1AB28

analogous

#28A3D1 #284ED1 #5728D1

triadic

#284ED1 #D1284E #4ED128

tetradic

#284ED1 #D128A3 #D1AB28 #28D157

square

#284ED1 #D128A3 #D1AB28 #28D157

split-complementary

#284ED1 #D15728 #A3D128

monochromatic

#14286A #1E3B9E #284ED1 #5776DF #8BA0E9

Accessibility & contrast

On white

6.77

#284ED1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#284ED1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #284ED1

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284ED1	#FFFFFF	#000000	##FFFFFF
##284ED1	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D5

Deuteranopia (green-blind)

#0053CF

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #284ed1;
/* rgb */ color: rgb(40, 78, 209);
/* oklch */ color: oklch(48.5% 0.206 266.0);

Tailwind

colors: {
  custom: {
    50: '#7f7fe0',
    500: '#284ed1',
    950: '#000000',
  },
}

SCSS

$custom: #284ed1;
$custom-light: #7f7fe0;
$custom-dark: #000000;

JSON

{
  "hex": "#284ed1",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 209
  },
  "hsl": {
    "h": 226.509,
    "s": 67.871,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48515,
    "c": 0.20601,
    "h": 266
  },
  "luminance": 0.10503
}

Semantic roles & 50–950 ramp

primary

#284ED1

secondary

#D3C182

accent

#C43DEB

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #284ED1

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

Preview Lab → · Contrast checker → · Palette generator →