#4284E2#4284E2

#4284E2 is a mid, vivid blue. Relative luminance 0.232; OKLCH L 61.7% C 0.158 H 257.6°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4284E2
RGB	rgb(66, 132, 226)
HSL	hsl(215, 73%, 57%)
HSV	hsv(215, 71%, 89%)
CMYK	cmyk(70.8%, 41.6%, 0%, 11.4%)
CIE-LAB	lab(55.23, 9.99, -53.93)
CIE-LCH	lch(55.23, 54.84, 280.49°)
OKLab	oklab(61.68% -0.0338 -0.1541)
OKLCH	oklch(61.68% 0.158 257.6)
XYZ	xyz(24.2205, 23.1492, 75.1285)
Luminance	0.2315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284E2 #E2A042

analogous

#42D4E2 #4284E2 #5042E2

triadic

#4284E2 #E24284 #84E242

tetradic

#4284E2 #E242D4 #E2A042 #42E250

square

#4284E2 #E242D4 #E2A042 #42E250

split-complementary

#4284E2 #E25042 #D4E242

monochromatic

#174A93 #1F65C8 #4284E2 #77A7EA #ACC9F2

Accessibility & contrast

On white

3.73

#4284E2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#4284E2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284E2

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284E2	#FFFFFF	#000000	##000000
##4284E2	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#578CE6

Deuteranopia (green-blind)

#3C7DE0

Tritanopia (blue-blind)

#009AA8

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4284e2;
/* rgb */ color: rgb(66, 132, 226);
/* oklch */ color: oklch(61.7% 0.158 257.6);

Tailwind

colors: {
  custom: {
    50: '#89a7eb',
    500: '#4284e2',
    950: '#000000',
  },
}

SCSS

$custom: #4284e2;
$custom-light: #89a7eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4284e2",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 226
  },
  "hsl": {
    "h": 215.25,
    "s": 73.394,
    "l": 57.255
  },
  "oklch": {
    "l": 0.6168,
    "c": 0.15773,
    "h": 257.6
  },
  "luminance": 0.23152
}

Semantic roles & 50–950 ramp

primary

#4284E2

secondary

#E0C69F

accent

#A438F0

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4284E2

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

Preview Lab → · Contrast checker → · Palette generator →