#4B66D5#4B66D5

#4B66D5 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.0% C 0.173 H 269.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#4B66D5
RGB	rgb(75, 102, 213)
HSL	hsl(228, 62%, 56%)
HSV	hsv(228, 65%, 84%)
CMYK	cmyk(64.8%, 52.1%, 0%, 16.5%)
CIE-LAB	lab(46.71, 25.39, -60.24)
CIE-LCH	lch(46.71, 65.37, 292.85°)
OKLab	oklab(55.01% -0.0011 -0.1729)
OKLCH	oklch(55.01% 0.173 269.6)
XYZ	xyz(19.6592, 15.8009, 64.9517)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66D5 #D5BA4B

analogous

#4BABD5 #4B66D5 #754BD5

triadic

#4B66D5 #D54B66 #66D54B

tetradic

#4B66D5 #D54BAB #D5BA4B #4BD575

square

#4B66D5 #D54BAB #D5BA4B #4BD575

split-complementary

#4B66D5 #D5754B #ABD54B

monochromatic

#1F3386 #2B46B8 #4B66D5 #7D90E1 #AEBAEC

Accessibility & contrast

On white

5.05

#4B66D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#4B66D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66D5

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66D5	#FFFFFF	#000000	##FFFFFF
##4B66D5	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2075D9

Deuteranopia (green-blind)

#0069D3

Tritanopia (blue-blind)

#008094

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4b66d5;
/* rgb */ color: rgb(75, 102, 213);
/* oklch */ color: oklch(55.0% 0.173 269.6);

Tailwind

colors: {
  custom: {
    50: '#8b91e3',
    500: '#4b66d5',
    950: '#000000',
  },
}

SCSS

$custom: #4b66d5;
$custom-light: #8b91e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66d5",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 213
  },
  "hsl": {
    "h": 228.261,
    "s": 62.162,
    "l": 56.471
  },
  "oklch": {
    "l": 0.55011,
    "c": 0.17291,
    "h": 269.6
  },
  "luminance": 0.15803
}

Semantic roles & 50–950 ramp

primary

#4B66D5

secondary

#DACFA2

accent

#C543E5

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C15

muted

#7E7D84

Preview Lab

Preview with #4B66D5

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

Preview Lab → · Contrast checker → · Palette generator →