#4166DB#4166DB

#4166DB is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.9% C 0.184 H 266.9°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#4166DB
RGB	rgb(65, 102, 219)
HSL	hsl(226, 68%, 56%)
HSV	hsv(226, 70%, 86%)
CMYK	cmyk(70.3%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(46.63, 26.01, -63.81)
CIE-LCH	lch(46.63, 68.90, 292.18°)
OKLab	oklab(54.95% -0.0099 -0.1836)
OKLCH	oklch(54.95% 0.184 266.9)
XYZ	xyz(19.7131, 15.7390, 69.0031)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166DB #DBB641

analogous

#41B3DB #4166DB #6941DB

triadic

#4166DB #DB4166 #66DB41

tetradic

#4166DB #DB41B3 #DBB641 #41DB69

square

#4166DB #DB41B3 #DBB641 #41DB69

split-complementary

#4166DB #DB6941 #B3DB41

monochromatic

#1A3488 #2348BB #4166DB #748FE5 #A8B9EE

Accessibility & contrast

On white

5.06

#4166DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#4166DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166DB

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166DB	#FFFFFF	#000000	##FFFFFF
##4166DB	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0976DF

Deuteranopia (green-blind)

#0068D9

Tritanopia (blue-blind)

#008297

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4166db;
/* rgb */ color: rgb(65, 102, 219);
/* oklch */ color: oklch(54.9% 0.184 266.9);

Tailwind

colors: {
  custom: {
    50: '#8891e7',
    500: '#4166db',
    950: '#000000',
  },
}

SCSS

$custom: #4166db;
$custom-light: #8891e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4166db",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 225.584,
    "s": 68.142,
    "l": 55.686
  },
  "oklch": {
    "l": 0.54946,
    "c": 0.18389,
    "h": 266.9
  },
  "luminance": 0.15741
}

Semantic roles & 50–950 ramp

primary

#4166DB

secondary

#DCCD9C

accent

#C13DEB

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4166DB

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

Preview Lab → · Contrast checker → · Palette generator →