#4F66D9#4F66D9

#4F66D9 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.5% C 0.177 H 271.0°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#4F66D9
RGB	rgb(79, 102, 217)
HSL	hsl(230, 64%, 58%)
HSV	hsv(230, 64%, 85%)
CMYK	cmyk(63.6%, 53%, 0%, 14.9%)
CIE-LAB	lab(47.20, 27.42, -61.71)
CIE-LCH	lch(47.20, 67.53, 293.95°)
OKLab	oklab(55.52% 0.0031 -0.1772)
OKLCH	oklch(55.52% 0.177 271)
XYZ	xyz(20.4960, 16.1730, 67.6738)
Luminance	0.1618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66D9 #D9C24F

analogous

#4FABD9 #4F66D9 #7D4FD9

triadic

#4F66D9 #D94F66 #66D94F

tetradic

#4F66D9 #D94FAB #D9C24F #4FD97D

square

#4F66D9 #D94FAB #D9C24F #4FD97D

split-complementary

#4F66D9 #D97D4F #ABD94F

monochromatic

#1F318F #2A43C1 #4F66D9 #8192E4 #B4BEEF

Accessibility & contrast

On white

4.96

#4F66D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#4F66D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66D9

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66D9	#FFFFFF	#000000	##FFFFFF
##4F66D9	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1976DD

Deuteranopia (green-blind)

#006AD7

Tritanopia (blue-blind)

#008196

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4f66d9;
/* rgb */ color: rgb(79, 102, 217);
/* oklch */ color: oklch(55.5% 0.177 271.0);

Tailwind

colors: {
  custom: {
    50: '#8e91e5',
    500: '#4f66d9',
    950: '#000000',
  },
}

SCSS

$custom: #4f66d9;
$custom-light: #8e91e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66d9",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 217
  },
  "hsl": {
    "h": 230,
    "s": 64.486,
    "l": 58.039
  },
  "oklch": {
    "l": 0.55524,
    "c": 0.1772,
    "h": 271
  },
  "luminance": 0.16175
}

Semantic roles & 50–950 ramp

primary

#4F66D9

secondary

#DDD4A6

accent

#CC40E7

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4F66D9

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

Preview Lab → · Contrast checker → · Palette generator →