#4E66BB#4E66BB

#4E66BB is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.4% C 0.136 H 269.5°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4E66BB
RGB	rgb(78, 102, 187)
HSL	hsl(227, 44%, 52%)
HSV	hsv(227, 58%, 73%)
CMYK	cmyk(58.3%, 45.5%, 0%, 26.7%)
CIE-LAB	lab(45.23, 17.00, -47.64)
CIE-LCH	lch(45.23, 50.59, 289.64°)
OKLab	oklab(53.4% -0.0012 -0.1358)
OKLCH	oklch(53.4% 0.136 269.5)
XYZ	xyz(16.8599, 14.7090, 48.9547)
Luminance	0.1471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66BB #BBA34E

analogous

#4E9DBB #4E66BB #6D4EBB

triadic

#4E66BB #BB4E66 #66BB4E

tetradic

#4E66BB #BB4E9D #BBA34E #4EBB6D

square

#4E66BB #BB4E9D #BBA34E #4EBB6D

split-complementary

#4E66BB #BB6D4E #9DBB4E

monochromatic

#283667 #394D93 #4E66BB #7A8CCC #A6B2DD

Accessibility & contrast

On white

5.33

#4E66BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4E66BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66BB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66BB	#FFFFFF	#000000	##FFFFFF
##4E66BB	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F70BE

Deuteranopia (green-blind)

#3067B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4e66bb;
/* rgb */ color: rgb(78, 102, 187);
/* oklch */ color: oklch(53.4% 0.136 269.5);

Tailwind

colors: {
  custom: {
    50: '#8891d0',
    500: '#4e66bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e66bb;
$custom-light: #8891d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66bb",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 187
  },
  "hsl": {
    "h": 226.789,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.53404,
    "c": 0.13581,
    "h": 269.5
  },
  "luminance": 0.1471
}

Semantic roles & 50–950 ramp

primary

#4E66BB

secondary

#CAC09B

accent

#B854D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4E66BB

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

Preview Lab → · Contrast checker → · Palette generator →