#4666CC#4666CC

#4666CC is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.1% C 0.162 H 267.6°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#4666CC
RGB	rgb(70, 102, 204)
HSL	hsl(226, 57%, 54%)
HSV	hsv(226, 66%, 80%)
CMYK	cmyk(65.7%, 50%, 0%, 20%)
CIE-LAB	lab(45.86, 21.42, -56.48)
CIE-LCH	lch(45.86, 60.41, 290.77°)
OKLab	oklab(54.1% -0.0067 -0.162)
OKLCH	oklch(54.1% 0.162 267.6)
XYZ	xyz(18.1725, 15.1628, 59.0841)
Luminance	0.1516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4666CC #CCAC46

analogous

#46A9CC #4666CC #6946CC

triadic

#4666CC #CC4666 #66CC46

tetradic

#4666CC #CC46A9 #CCAC46 #46CC69

square

#4666CC #CC46A9 #CCAC46 #46CC69

split-complementary

#4666CC #CC6946 #A9CC46

monochromatic

#213577 #2E4BA7 #4666CC #768ED9 #A6B5E6

Accessibility & contrast

On white

5.21

#4666CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#4666CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4666CC

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4666CC	#FFFFFF	#000000	##FFFFFF
##4666CC	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)

#2C73D0

Deuteranopia (green-blind)

#0067CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4666cc;
/* rgb */ color: rgb(70, 102, 204);
/* oklch */ color: oklch(54.1% 0.162 267.6);

Tailwind

colors: {
  custom: {
    50: '#8791dc',
    500: '#4666cc',
    950: '#000000',
  },
}

SCSS

$custom: #4666cc;
$custom-light: #8791dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4666cc",
  "rgb": {
    "r": 70,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 225.672,
    "s": 56.78,
    "l": 53.725
  },
  "oklch": {
    "l": 0.54103,
    "c": 0.16211,
    "h": 267.6
  },
  "luminance": 0.15164
}

Semantic roles & 50–950 ramp

primary

#4666CC

secondary

#D4C69A

accent

#BC48E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4666CC

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

Preview Lab → · Contrast checker → · Palette generator →