#4166CE#4166CE

#4166CE is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.166 H 266.2°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#4166CE
RGB	rgb(65, 102, 206)
HSL	hsl(224, 59%, 53%)
HSV	hsv(224, 68%, 81%)
CMYK	cmyk(68.4%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(45.74, 21.35, -57.82)
CIE-LCH	lch(45.74, 61.64, 290.27°)
OKLab	oklab(53.99% -0.0111 -0.166)
OKLCH	oklch(53.99% 0.166 266.2)
XYZ	xyz(18.0680, 15.0810, 60.3393)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166CE #CEA941

analogous

#41ADCE #4166CE #6241CE

triadic

#4166CE #CE4166 #66CE41

tetradic

#4166CE #CE41AD #CEA941 #41CE62

square

#4166CE #CE41AD #CEA941 #41CE62

split-complementary

#4166CE #CE6241 #ADCE41

monochromatic

#1E3576 #2B4BA7 #4166CE #728DDB #A2B4E7

Accessibility & contrast

On white

5.23

#4166CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#4166CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166CE

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166CE	#FFFFFF	#000000	##FFFFFF
##4166CE	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2873D2

Deuteranopia (green-blind)

#0066CC

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4166ce;
/* rgb */ color: rgb(65, 102, 206);
/* oklch */ color: oklch(54.0% 0.166 266.2);

Tailwind

colors: {
  custom: {
    50: '#8591de',
    500: '#4166ce',
    950: '#000000',
  },
}

SCSS

$custom: #4166ce;
$custom-light: #8591de;
$custom-dark: #000000;

JSON

{
  "hex": "#4166ce",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 224.255,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.53994,
    "c": 0.16638,
    "h": 266.2
  },
  "luminance": 0.15083
}

Semantic roles & 50–950 ramp

primary

#4166CE

secondary

#D4C497

accent

#B946E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4166CE

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

Preview Lab → · Contrast checker → · Palette generator →