#4284EA#4284EA

#4284EA is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.2% C 0.168 H 258.9°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#4284EA
RGB	rgb(66, 132, 234)
HSL	hsl(216, 80%, 59%)
HSV	hsv(216, 72%, 92%)
CMYK	cmyk(71.8%, 43.6%, 0%, 8.2%)
CIE-LAB	lab(55.68, 12.84, -57.66)
CIE-LCH	lch(55.68, 59.07, 282.55°)
OKLab	oklab(62.18% -0.0323 -0.165)
OKLCH	oklch(62.18% 0.168 258.9)
XYZ	xyz(25.3439, 23.5985, 81.0452)
Luminance	0.2360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284EA #EAA842

analogous

#42D8EA #4284EA #5442EA

triadic

#4284EA #EA4284 #84EA42

tetradic

#4284EA #EA42D8 #EAA842 #42EA54

square

#4284EA #EA42D8 #EAA842 #42EA54

split-complementary

#4284EA #EA5442 #D8EA42

monochromatic

#124AA0 #1863D7 #4284EA #79A8F0 #B0CCF6

Accessibility & contrast

On white

3.67

#4284EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#4284EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284EA

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284EA	#FFFFFF	#000000	##000000
##4284EA	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#518EEE

Deuteranopia (green-blind)

#317EE8

Tritanopia (blue-blind)

#009CAB

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4284ea;
/* rgb */ color: rgb(66, 132, 234);
/* oklch */ color: oklch(62.2% 0.168 258.9);

Tailwind

colors: {
  custom: {
    50: '#8aa7f1',
    500: '#4284ea',
    950: '#000000',
  },
}

SCSS

$custom: #4284ea;
$custom-light: #8aa7f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4284ea",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 234
  },
  "hsl": {
    "h": 216.429,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.62182,
    "c": 0.16816,
    "h": 258.9
  },
  "luminance": 0.23601
}

Semantic roles & 50–950 ramp

primary

#4284EA

secondary

#E5CBA3

accent

#A931F6

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F17

muted

#7E7F85

Preview Lab

Preview with #4284EA

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

Preview Lab → · Contrast checker → · Palette generator →