#4284E7#4284E7

#4284E7 is a mid, vivid blue. Relative luminance 0.234; OKLCH L 62.0% C 0.164 H 258.5°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#4284E7
RGB	rgb(66, 132, 231)
HSL	hsl(216, 77%, 58%)
HSV	hsv(216, 71%, 91%)
CMYK	cmyk(71.4%, 42.9%, 0%, 9.4%)
CIE-LAB	lab(55.51, 11.77, -56.27)
CIE-LCH	lch(55.51, 57.48, 281.81°)
OKLab	oklab(61.99% -0.0328 -0.1609)
OKLCH	oklch(61.99% 0.164 258.5)
XYZ	xyz(24.9166, 23.4276, 78.7946)
Luminance	0.2343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284E7 #E7A542

analogous

#42D6E7 #4284E7 #5242E7

triadic

#4284E7 #E74284 #84E742

tetradic

#4284E7 #E742D6 #E7A542 #42E752

square

#4284E7 #E742D6 #E7A542 #42E752

split-complementary

#4284E7 #E75242 #D6E742

monochromatic

#144A9B #1B64D1 #4284E7 #78A7EE #AFCBF5

Accessibility & contrast

On white

3.69

#4284E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#4284E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284E7

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284E7	#FFFFFF	#000000	##000000
##4284E7	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#538DEB

Deuteranopia (green-blind)

#367EE5

Tritanopia (blue-blind)

#009BAA

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4284e7;
/* rgb */ color: rgb(66, 132, 231);
/* oklch */ color: oklch(62.0% 0.164 258.5);

Tailwind

colors: {
  custom: {
    50: '#8aa7ef',
    500: '#4284e7',
    950: '#000000',
  },
}

SCSS

$custom: #4284e7;
$custom-light: #8aa7ef;
$custom-dark: #000000;

JSON

{
  "hex": "#4284e7",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 231
  },
  "hsl": {
    "h": 216,
    "s": 77.465,
    "l": 58.235
  },
  "oklch": {
    "l": 0.61992,
    "c": 0.16424,
    "h": 258.5
  },
  "luminance": 0.2343
}

Semantic roles & 50–950 ramp

primary

#4284E7

secondary

#E3C9A2

accent

#A734F4

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4284E7

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

Preview Lab → · Contrast checker → · Palette generator →