#4F66CC#4F66CC

#4F66CC is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.6% C 0.159 H 270.7°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#4F66CC
RGB	rgb(79, 102, 204)
HSL	hsl(229, 55%, 55%)
HSV	hsv(229, 61%, 80%)
CMYK	cmyk(61.3%, 50%, 0%, 20%)
CIE-LAB	lab(46.34, 22.97, -55.67)
CIE-LCH	lch(46.34, 60.23, 292.42°)
OKLab	oklab(54.6% 0.0021 -0.1594)
OKLCH	oklch(54.6% 0.159 270.7)
XYZ	xyz(18.8713, 15.5231, 59.1168)
Luminance	0.1552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66CC #CCB54F

analogous

#4FA4CC #4F66CC #764FCC

triadic

#4F66CC #CC4F66 #66CC4F

tetradic

#4F66CC #CC4FA4 #CCB54F #4FCC76

square

#4F66CC #CC4FA4 #CCB54F #4FCC76

split-complementary

#4F66CC #CC764F #A4CC4F

monochromatic

#24347D #3248AC #4F66CC #7E8FDA #AEB8E7

Accessibility & contrast

On white

5.12

#4F66CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#4F66CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66CC

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66CC	#FFFFFF	#000000	##FFFFFF
##4F66CC	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F74D0

Deuteranopia (green-blind)

#1169CA

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4f66cc;
/* rgb */ color: rgb(79, 102, 204);
/* oklch */ color: oklch(54.6% 0.159 270.7);

Tailwind

colors: {
  custom: {
    50: '#8c91dc',
    500: '#4f66cc',
    950: '#000000',
  },
}

SCSS

$custom: #4f66cc;
$custom-light: #8c91dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66cc",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 204
  },
  "hsl": {
    "h": 228.96,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.54602,
    "c": 0.1594,
    "h": 270.7
  },
  "luminance": 0.15525
}

Semantic roles & 50–950 ramp

primary

#4F66CC

secondary

#D5CCA1

accent

#C349DE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4F66CC

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

Preview Lab → · Contrast checker → · Palette generator →