#4166DF#4166DF

#4166DF is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.2% C 0.189 H 267.1°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#4166DF
RGB	rgb(65, 102, 223)
HSL	hsl(226, 71%, 56%)
HSV	hsv(226, 71%, 87%)
CMYK	cmyk(70.9%, 54.3%, 0%, 12.5%)
CIE-LAB	lab(46.91, 27.44, -65.62)
CIE-LCH	lch(46.91, 71.13, 292.69°)
OKLab	oklab(55.25% -0.0096 -0.189)
OKLCH	oklch(55.25% 0.189 267.1)
XYZ	xyz(20.2460, 15.9522, 71.8098)
Luminance	0.1595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166DF #DFBA41

analogous

#41B5DF #4166DF #6B41DF

triadic

#4166DF #DF4166 #66DF41

tetradic

#4166DF #DF41B5 #DFBA41 #41DF6B

square

#4166DF #DF41B5 #DFBA41 #41DF6B

split-complementary

#4166DF #DF6B41 #B5DF41

monochromatic

#18338E #2146C2 #4166DF #7590E8 #AABAF1

Accessibility & contrast

On white

5.01

#4166DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#4166DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166DF

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166DF	#FFFFFF	#000000	##FFFFFF
##4166DF	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077E3

Deuteranopia (green-blind)

#0068DD

Tritanopia (blue-blind)

#008399

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4166df;
/* rgb */ color: rgb(65, 102, 223);
/* oklch */ color: oklch(55.2% 0.189 267.1);

Tailwind

colors: {
  custom: {
    50: '#8991ea',
    500: '#4166df',
    950: '#000000',
  },
}

SCSS

$custom: #4166df;
$custom-light: #8991ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4166df",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 223
  },
  "hsl": {
    "h": 225.949,
    "s": 71.171,
    "l": 56.471
  },
  "oklch": {
    "l": 0.55248,
    "c": 0.1892,
    "h": 267.1
  },
  "luminance": 0.15954
}

Semantic roles & 50–950 ramp

primary

#4166DF

secondary

#DECF9D

accent

#C43AEE

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4166DF

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

Preview Lab → · Contrast checker → · Palette generator →