#4C66D7#4C66D7

#4C66D7 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.2% C 0.175 H 270.0°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#4C66D7
RGB	rgb(76, 102, 215)
HSL	hsl(229, 63%, 57%)
HSV	hsv(229, 65%, 84%)
CMYK	cmyk(64.7%, 52.6%, 0%, 15.7%)
CIE-LAB	lab(46.90, 26.24, -61.07)
CIE-LCH	lch(46.90, 66.47, 293.25°)
OKLab	oklab(55.21% 0 -0.1753)
OKLCH	oklch(55.21% 0.175 270)
XYZ	xyz(19.9934, 15.9437, 66.3006)
Luminance	0.1595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66D7 #D7BD4C

analogous

#4CACD7 #4C66D7 #784CD7

triadic

#4C66D7 #D74C66 #66D74C

tetradic

#4C66D7 #D74CAC #D7BD4C #4CD778

square

#4C66D7 #D74CAC #D7BD4C #4CD778

split-complementary

#4C66D7 #D7784C #ACD74C

monochromatic

#1F338A #2A45BC #4C66D7 #7E91E2 #B0BCED

Accessibility & contrast

On white

5.01

#4C66D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#4C66D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66D7

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66D7	#FFFFFF	#000000	##FFFFFF
##4C66D7	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C76DB

Deuteranopia (green-blind)

#0069D5

Tritanopia (blue-blind)

#008195

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4c66d7;
/* rgb */ color: rgb(76, 102, 215);
/* oklch */ color: oklch(55.2% 0.175 270.0);

Tailwind

colors: {
  custom: {
    50: '#8c91e4',
    500: '#4c66d7',
    950: '#000000',
  },
}

SCSS

$custom: #4c66d7;
$custom-light: #8c91e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66d7",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 215
  },
  "hsl": {
    "h": 228.777,
    "s": 63.47,
    "l": 57.059
  },
  "oklch": {
    "l": 0.55211,
    "c": 0.17534,
    "h": 270
  },
  "luminance": 0.15946
}

Semantic roles & 50–950 ramp

primary

#4C66D7

secondary

#DCD1A3

accent

#C841E6

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4C66D7

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

Preview Lab → · Contrast checker → · Palette generator →