#4E66CC#4E66CC

#4E66CC is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.5% C 0.160 H 270.4°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#4E66CC
RGB	rgb(78, 102, 204)
HSL	hsl(229, 55%, 55%)
HSV	hsv(229, 62%, 80%)
CMYK	cmyk(61.8%, 50%, 0%, 20%)
CIE-LAB	lab(46.29, 22.79, -55.77)
CIE-LCH	lch(46.29, 60.25, 292.23°)
OKLab	oklab(54.54% 0.001 -0.1597)
OKLCH	oklch(54.54% 0.16 270.4)
XYZ	xyz(18.7887, 15.4805, 59.1129)
Luminance	0.1548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66CC #CCB44E

analogous

#4EA5CC #4E66CC #754ECC

triadic

#4E66CC #CC4E66 #66CC4E

tetradic

#4E66CC #CC4EA5 #CCB44E #4ECC75

square

#4E66CC #CC4EA5 #CCB44E #4ECC75

split-complementary

#4E66CC #CC754E #A5CC4E

monochromatic

#24357C #3149AB #4E66CC #7E8FDA #ADB8E7

Accessibility & contrast

On white

5.13

#4E66CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#4E66CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66CC

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66CC	#FFFFFF	#000000	##FFFFFF
##4E66CC	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E74D0

Deuteranopia (green-blind)

#0F68CA

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4e66cc;
/* rgb */ color: rgb(78, 102, 204);
/* oklch */ color: oklch(54.5% 0.160 270.4);

Tailwind

colors: {
  custom: {
    50: '#8b91dc',
    500: '#4e66cc',
    950: '#000000',
  },
}

SCSS

$custom: #4e66cc;
$custom-light: #8b91dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66cc",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 228.571,
    "s": 55.263,
    "l": 55.294
  },
  "oklch": {
    "l": 0.54543,
    "c": 0.1597,
    "h": 270.4
  },
  "luminance": 0.15482
}

Semantic roles & 50–950 ramp

primary

#4E66CC

secondary

#D5CBA1

accent

#C249DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4E66CC

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

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