#4166B5#4166B5

#4166B5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.3% C 0.132 H 263.6°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4166B5
RGB	rgb(65, 102, 181)
HSL	hsl(221, 47%, 48%)
HSV	hsv(221, 64%, 71%)
CMYK	cmyk(64.1%, 43.6%, 0%, 29%)
CIE-LAB	lab(44.18, 12.42, -45.88)
CIE-LCH	lch(44.18, 47.53, 285.15°)
OKLab	oklab(52.29% -0.0147 -0.1309)
OKLCH	oklch(52.29% 0.132 263.6)
XYZ	xyz(15.2689, 13.9614, 45.5973)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166B5 #B59041

analogous

#41A0B5 #4166B5 #5641B5

triadic

#4166B5 #B54166 #66B541

tetradic

#4166B5 #B541A0 #B59041 #41B556

square

#4166B5 #B541A0 #B59041 #41B556

split-complementary

#4166B5 #B55641 #A0B541

monochromatic

#21335B #314D88 #4166B5 #6A88C9 #97ACDA

Accessibility & contrast

On white

5.54

#4166B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#4166B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166B5

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166B5	#FFFFFF	#000000	##FFFFFF
##4166B5	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416EB8

Deuteranopia (green-blind)

#2F63B3

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4166b5;
/* rgb */ color: rgb(65, 102, 181);
/* oklch */ color: oklch(52.3% 0.132 263.6);

Tailwind

colors: {
  custom: {
    50: '#8191cc',
    500: '#4166b5',
    950: '#000000',
  },
}

SCSS

$custom: #4166b5;
$custom-light: #8191cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4166b5",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 220.862,
    "s": 47.154,
    "l": 48.235
  },
  "oklch": {
    "l": 0.52292,
    "c": 0.1317,
    "h": 263.6
  },
  "luminance": 0.13963
}

Semantic roles & 50–950 ramp

primary

#4166B5

secondary

#C5B38C

accent

#AC51D7

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4166B5

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

Preview Lab → · Contrast checker → · Palette generator →