#4166D9#4166D9

#4166D9 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.8% C 0.181 H 266.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#4166D9
RGB	rgb(65, 102, 217)
HSL	hsl(225, 67%, 55%)
HSV	hsv(225, 70%, 85%)
CMYK	cmyk(70%, 53%, 0%, 14.9%)
CIE-LAB	lab(46.49, 25.29, -62.90)
CIE-LCH	lch(46.49, 67.79, 291.91°)
OKLab	oklab(54.8% -0.01 -0.1809)
OKLCH	oklch(54.8% 0.181 266.8)
XYZ	xyz(19.4514, 15.6343, 67.6248)
Luminance	0.1564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166D9 #D9B441

analogous

#41B2D9 #4166D9 #6841D9

triadic

#4166D9 #D94166 #66D941

tetradic

#4166D9 #D941B2 #D9B441 #41D968

square

#4166D9 #D941B2 #D9B441 #41D968

split-complementary

#4166D9 #D96841 #B2D941

monochromatic

#1B3485 #2549B8 #4166D9 #748FE3 #A7B8ED

Accessibility & contrast

On white

5.09

#4166D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#4166D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166D9

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166D9	#FFFFFF	#000000	##FFFFFF
##4166D9	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1175DD

Deuteranopia (green-blind)

#0068D7

Tritanopia (blue-blind)

#008296

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4166d9;
/* rgb */ color: rgb(65, 102, 217);
/* oklch */ color: oklch(54.8% 0.181 266.8);

Tailwind

colors: {
  custom: {
    50: '#8891e5',
    500: '#4166d9',
    950: '#000000',
  },
}

SCSS

$custom: #4166d9;
$custom-light: #8891e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4166d9",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 217
  },
  "hsl": {
    "h": 225.395,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.54797,
    "c": 0.18122,
    "h": 266.8
  },
  "luminance": 0.15636
}

Semantic roles & 50–950 ramp

primary

#4166D9

secondary

#DBCB9B

accent

#C03EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4166D9

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

Preview Lab → · Contrast checker → · Palette generator →