#4E66C5#4E66C5

#4E66C5 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.1% C 0.150 H 270.1°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#4E66C5
RGB	rgb(78, 102, 197)
HSL	hsl(228, 51%, 54%)
HSV	hsv(228, 60%, 77%)
CMYK	cmyk(60.4%, 48.2%, 0%, 22.7%)
CIE-LAB	lab(45.84, 20.40, -52.45)
CIE-LCH	lch(45.84, 56.28, 291.25°)
OKLab	oklab(54.06% 0.0002 -0.1499)
OKLCH	oklch(54.06% 0.15 270.1)
XYZ	xyz(17.9679, 15.1522, 54.7903)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66C5 #C5AD4E

analogous

#4EA2C5 #4E66C5 #724EC5

triadic

#4E66C5 #C54E66 #66C54E

tetradic

#4E66C5 #C54EA2 #C5AD4E #4EC572

square

#4E66C5 #C54EA2 #C5AD4E #4EC572

split-complementary

#4E66C5 #C5724E #A2C54E

monochromatic

#263573 #354BA1 #4E66C5 #7C8ED4 #AAB6E3

Accessibility & contrast

On white

5.21

#4E66C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#4E66C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66C5

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66C5	#FFFFFF	#000000	##FFFFFF
##4E66C5	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3672C8

Deuteranopia (green-blind)

#2168C3

Tritanopia (blue-blind)

#007C8C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4e66c5;
/* rgb */ color: rgb(78, 102, 197);
/* oklch */ color: oklch(54.1% 0.150 270.1);

Tailwind

colors: {
  custom: {
    50: '#8a91d7',
    500: '#4e66c5',
    950: '#000000',
  },
}

SCSS

$custom: #4e66c5;
$custom-light: #8a91d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66c5",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 197
  },
  "hsl": {
    "h": 227.899,
    "s": 50.638,
    "l": 53.922
  },
  "oklch": {
    "l": 0.54064,
    "c": 0.14995,
    "h": 270.1
  },
  "luminance": 0.15154
}

Semantic roles & 50–950 ramp

primary

#4E66C5

secondary

#D1C79E

accent

#BE4EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0D0C14

muted

#7D7D83

Preview Lab

Preview with #4E66C5

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

Preview Lab → · Contrast checker → · Palette generator →