#4C66CC#4C66CC

#4C66CC is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.160 H 269.7°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4C66CC
RGB	rgb(76, 102, 204)
HSL	hsl(228, 56%, 55%)
HSV	hsv(228, 63%, 80%)
CMYK	cmyk(62.7%, 50%, 0%, 20%)
CIE-LAB	lab(46.17, 22.44, -55.95)
CIE-LCH	lch(46.17, 60.29, 291.85°)
OKLab	oklab(54.43% -0.001 -0.1603)
OKLCH	oklch(54.43% 0.16 269.7)
XYZ	xyz(18.6273, 15.3973, 59.1054)
Luminance	0.1540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66CC #CCB24C

analogous

#4CA6CC #4C66CC #724CCC

triadic

#4C66CC #CC4C66 #66CC4C

tetradic

#4C66CC #CC4CA6 #CCB24C #4CCC72

square

#4C66CC #CC4CA6 #CCB24C #4CCC72

split-complementary

#4C66CC #CC724C #A6CC4C

monochromatic

#23357B #3149AA #4C66CC #7C8FDA #ABB7E7

Accessibility & contrast

On white

5.15

#4C66CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#4C66CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66CC

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66CC	#FFFFFF	#000000	##FFFFFF
##4C66CC	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)

#2E73D0

Deuteranopia (green-blind)

#0B68CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4c66cc;
/* rgb */ color: rgb(76, 102, 204);
/* oklch */ color: oklch(54.4% 0.160 269.7);

Tailwind

colors: {
  custom: {
    50: '#8a91dc',
    500: '#4c66cc',
    950: '#000000',
  },
}

SCSS

$custom: #4c66cc;
$custom-light: #8a91dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66cc",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 227.813,
    "s": 55.652,
    "l": 54.902
  },
  "oklch": {
    "l": 0.54429,
    "c": 0.16029,
    "h": 269.7
  },
  "luminance": 0.15399
}

Semantic roles & 50–950 ramp

primary

#4C66CC

secondary

#D5CA9F

accent

#C049DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4C66CC

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

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