#4D66CC#4D66CC

#4D66CC is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.5% C 0.160 H 270.0°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#4D66CC
RGB	rgb(77, 102, 204)
HSL	hsl(228, 55%, 55%)
HSV	hsv(228, 62%, 80%)
CMYK	cmyk(62.3%, 50%, 0%, 20%)
CIE-LAB	lab(46.23, 22.62, -55.86)
CIE-LCH	lch(46.23, 60.27, 292.04°)
OKLab	oklab(54.49% 0 -0.16)
OKLCH	oklch(54.49% 0.16 270)
XYZ	xyz(18.7073, 15.4386, 59.1091)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66CC #CCB34D

analogous

#4DA6CC #4D66CC #734DCC

triadic

#4D66CC #CC4D66 #66CC4D

tetradic

#4D66CC #CC4DA6 #CCB34D #4DCC73

square

#4D66CC #CC4DA6 #CCB34D #4DCC73

split-complementary

#4D66CC #CC734D #A6CC4D

monochromatic

#23357B #3149AB #4D66CC #7D8FDA #ACB8E7

Accessibility & contrast

On white

5.14

#4D66CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#4D66CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66CC

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66CC	#FFFFFF	#000000	##FFFFFF
##4D66CC	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E73D0

Deuteranopia (green-blind)

#0D68CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4d66cc;
/* rgb */ color: rgb(77, 102, 204);
/* oklch */ color: oklch(54.5% 0.160 270.0);

Tailwind

colors: {
  custom: {
    50: '#8b91dc',
    500: '#4d66cc',
    950: '#000000',
  },
}

SCSS

$custom: #4d66cc;
$custom-light: #8b91dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66cc",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 228.189,
    "s": 55.459,
    "l": 55.098
  },
  "oklch": {
    "l": 0.54486,
    "c": 0.15999,
    "h": 270
  },
  "luminance": 0.1544
}

Semantic roles & 50–950 ramp

primary

#4D66CC

secondary

#D5CBA0

accent

#C149DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4D66CC

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

Preview Lab → · Contrast checker → · Palette generator →