#4B66DD#4B66DD

#4B66DD is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.6% C 0.184 H 269.8°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#4B66DD
RGB	rgb(75, 102, 221)
HSL	hsl(229, 68%, 58%)
HSV	hsv(229, 66%, 87%)
CMYK	cmyk(66.1%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(47.26, 28.16, -63.90)
CIE-LCH	lch(47.26, 69.83, 293.78°)
OKLab	oklab(55.6% -0.0006 -0.1837)
OKLCH	oklch(55.6% 0.184 269.8)
XYZ	xyz(20.6997, 16.2171, 70.4319)
Luminance	0.1622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66DD #DDC24B

analogous

#4BAFDD #4B66DD #794BDD

triadic

#4B66DD #DD4B66 #66DD4B

tetradic

#4B66DD #DD4BAF #DDC24B #4BDD79

square

#4B66DD #DD4BAF #DDC24B #4BDD79

split-complementary

#4B66DD #DD794B #AFDD4B

monochromatic

#1C3192 #2543C5 #4B66DD #7E92E7 #B2BEF0

Accessibility & contrast

On white

4.95

#4B66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#4B66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66DD

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66DD	#FFFFFF	#000000	##FFFFFF
##4B66DD	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0877E1

Deuteranopia (green-blind)

#006ADB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4b66dd;
/* rgb */ color: rgb(75, 102, 221);
/* oklch */ color: oklch(55.6% 0.184 269.8);

Tailwind

colors: {
  custom: {
    50: '#8d91e8',
    500: '#4b66dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b66dd;
$custom-light: #8d91e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66dd",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 228.904,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.55596,
    "c": 0.1837,
    "h": 269.8
  },
  "luminance": 0.16219
}

Semantic roles & 50–950 ramp

primary

#4B66DD

secondary

#DFD4A5

accent

#CB3DEB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4B66DD

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

Preview Lab → · Contrast checker → · Palette generator →