#4B66CD#4B66CD

#4B66CD is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.162 H 269.3°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4B66CD
RGB	rgb(75, 102, 205)
HSL	hsl(228, 57%, 55%)
HSV	hsv(228, 63%, 80%)
CMYK	cmyk(63.4%, 50.2%, 0%, 19.6%)
CIE-LAB	lab(46.18, 22.61, -56.51)
CIE-LCH	lch(46.18, 60.87, 291.81°)
OKLab	oklab(54.44% -0.0018 -0.162)
OKLCH	oklch(54.44% 0.162 269.3)
XYZ	xyz(18.6687, 15.4047, 59.7354)
Luminance	0.1541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66CD #CDB24B

analogous

#4BA7CD #4B66CD #714BCD

triadic

#4B66CD #CD4B66 #66CD4B

tetradic

#4B66CD #CD4BA7 #CDB24B #4BCD71

square

#4B66CD #CD4BA7 #CDB24B #4BCD71

split-complementary

#4B66CD #CD714B #A7CD4B

monochromatic

#22357B #3049AB #4B66CD #7B8FDA #ABB7E8

Accessibility & contrast

On white

5.15

#4B66CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#4B66CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66CD

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66CD	#FFFFFF	#000000	##FFFFFF
##4B66CD	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C74D1

Deuteranopia (green-blind)

#0368CB

Tritanopia (blue-blind)

#007E90

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4b66cd;
/* rgb */ color: rgb(75, 102, 205);
/* oklch */ color: oklch(54.4% 0.162 269.3);

Tailwind

colors: {
  custom: {
    50: '#8a91dd',
    500: '#4b66cd',
    950: '#000000',
  },
}

SCSS

$custom: #4b66cd;
$custom-light: #8a91dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66cd",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 205
  },
  "hsl": {
    "h": 227.538,
    "s": 56.522,
    "l": 54.902
  },
  "oklch": {
    "l": 0.54443,
    "c": 0.16197,
    "h": 269.3
  },
  "luminance": 0.15406
}

Semantic roles & 50–950 ramp

primary

#4B66CD

secondary

#D5CA9F

accent

#C048E0

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4B66CD

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

Preview Lab → · Contrast checker → · Palette generator →