#4166D1#4166D1

#4166D1 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.2% C 0.170 H 266.4°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#4166D1
RGB	rgb(65, 102, 209)
HSL	hsl(225, 61%, 54%)
HSV	hsv(225, 69%, 82%)
CMYK	cmyk(68.9%, 51.2%, 0%, 18%)
CIE-LAB	lab(45.95, 22.43, -59.22)
CIE-LCH	lch(45.95, 63.32, 290.74°)
OKLab	oklab(54.21% -0.0107 -0.1701)
OKLCH	oklch(54.21% 0.17 266.4)
XYZ	xyz(18.4360, 15.2282, 62.2770)
Luminance	0.1523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166D1 #D1AC41

analogous

#41AED1 #4166D1 #6441D1

triadic

#4166D1 #D14166 #66D141

tetradic

#4166D1 #D141AE #D1AC41 #41D164

square

#4166D1 #D141AE #D1AC41 #41D164

split-complementary

#4166D1 #D16441 #AED141

monochromatic

#1E357A #294BAB #4166D1 #728EDD #A4B5E9

Accessibility & contrast

On white

5.19

#4166D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#4166D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166D1

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166D1	#FFFFFF	#000000	##FFFFFF
##4166D1	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2474D5

Deuteranopia (green-blind)

#0067CF

Tritanopia (blue-blind)

#007F92

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4166d1;
/* rgb */ color: rgb(65, 102, 209);
/* oklch */ color: oklch(54.2% 0.170 266.4);

Tailwind

colors: {
  custom: {
    50: '#8691e0',
    500: '#4166d1',
    950: '#000000',
  },
}

SCSS

$custom: #4166d1;
$custom-light: #8691e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4166d1",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 209
  },
  "hsl": {
    "h": 224.583,
    "s": 61.017,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5421,
    "c": 0.17045,
    "h": 266.4
  },
  "luminance": 0.1523
}

Semantic roles & 50–950 ramp

primary

#4166D1

secondary

#D6C698

accent

#BB44E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4166D1

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

Preview Lab → · Contrast checker → · Palette generator →