#4F66BF#4F66BF

#4F66BF is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.7% C 0.141 H 270.2°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#4F66BF
RGB	rgb(79, 102, 191)
HSL	hsl(228, 47%, 53%)
HSV	hsv(228, 59%, 75%)
CMYK	cmyk(58.6%, 46.6%, 0%, 25.1%)
CIE-LAB	lab(45.53, 18.56, -49.48)
CIE-LCH	lch(45.53, 52.85, 290.56°)
OKLab	oklab(53.73% 0.0005 -0.1412)
OKLCH	oklch(53.73% 0.141 270.2)
XYZ	xyz(17.3767, 14.9252, 51.2453)
Luminance	0.1493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66BF #BFA84F

analogous

#4F9EBF #4F66BF #704FBF

triadic

#4F66BF #BF4F66 #66BF4F

tetradic

#4F66BF #BF4F9E #BFA84F #4FBF70

square

#4F66BF #BF4F9E #BFA84F #4FBF70

split-complementary

#4F66BF #BF704F #9EBF4F

monochromatic

#27366C #384C99 #4F66BF #7C8DCF #A9B4E0

Accessibility & contrast

On white

5.27

#4F66BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#4F66BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66BF

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66BF	#FFFFFF	#000000	##FFFFFF
##4F66BF	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C71C2

Deuteranopia (green-blind)

#2B67BD

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4f66bf;
/* rgb */ color: rgb(79, 102, 191);
/* oklch */ color: oklch(53.7% 0.141 270.2);

Tailwind

colors: {
  custom: {
    50: '#8a91d3',
    500: '#4f66bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f66bf;
$custom-light: #8a91d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66bf",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 191
  },
  "hsl": {
    "h": 227.679,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.53725,
    "c": 0.14119,
    "h": 270.2
  },
  "luminance": 0.14927
}

Semantic roles & 50–950 ramp

primary

#4F66BF

secondary

#CDC39D

accent

#BB51D6

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #4F66BF

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

Preview Lab → · Contrast checker → · Palette generator →