#4B66BE#4B66BE

#4B66BE is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.4% C 0.141 H 268.5°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4B66BE
RGB	rgb(75, 102, 190)
HSL	hsl(226, 47%, 52%)
HSV	hsv(226, 61%, 75%)
CMYK	cmyk(60.5%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(45.24, 17.43, -49.38)
CIE-LCH	lch(45.24, 52.37, 289.44°)
OKLab	oklab(53.42% -0.0037 -0.141)
OKLCH	oklch(53.42% 0.141 268.5)
XYZ	xyz(16.9441, 14.7149, 50.6526)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66BE #BEA34B

analogous

#4BA0BE #4B66BE #6A4BBE

triadic

#4B66BE #BE4B66 #66BE4B

tetradic

#4B66BE #BE4BA0 #BEA34B #4BBE6A

square

#4B66BE #BE4BA0 #BEA34B #4BBE6A

split-complementary

#4B66BE #BE6A4B #A0BE4B

monochromatic

#263669 #364D96 #4B66BE #788CCE #A5B2DE

Accessibility & contrast

On white

5.33

#4B66BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4B66BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66BE

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66BE	#FFFFFF	#000000	##FFFFFF
##4B66BE	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)

#3C71C1

Deuteranopia (green-blind)

#2A66BC

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4b66be;
/* rgb */ color: rgb(75, 102, 190);
/* oklch */ color: oklch(53.4% 0.141 268.5);

Tailwind

colors: {
  custom: {
    50: '#8791d2',
    500: '#4b66be',
    950: '#000000',
  },
}

SCSS

$custom: #4b66be;
$custom-light: #8791d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66be",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 225.913,
    "s": 46.939,
    "l": 51.961
  },
  "oklch": {
    "l": 0.53423,
    "c": 0.14103,
    "h": 268.5
  },
  "luminance": 0.14716
}

Semantic roles & 50–950 ramp

primary

#4B66BE

secondary

#CCC099

accent

#B751D7

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4B66BE

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

Preview Lab → · Contrast checker → · Palette generator →