#4166BD#4166BD

#4166BD is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.143 H 264.7°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4166BD
RGB	rgb(65, 102, 189)
HSL	hsl(222, 49%, 50%)
HSV	hsv(222, 66%, 74%)
CMYK	cmyk(65.6%, 46%, 0%, 25.9%)
CIE-LAB	lab(44.66, 15.27, -49.76)
CIE-LCH	lch(44.66, 52.05, 287.06°)
OKLab	oklab(52.82% -0.0133 -0.1423)
OKLCH	oklch(52.82% 0.143 264.7)
XYZ	xyz(16.1135, 14.2992, 50.0451)
Luminance	0.1430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166BD #BD9841

analogous

#41A4BD #4166BD #5A41BD

triadic

#4166BD #BD4166 #66BD41

tetradic

#4166BD #BD41A4 #BD9841 #41BD5A

square

#4166BD #BD41A4 #BD9841 #41BD5A

split-complementary

#4166BD #BD5A41 #A4BD41

monochromatic

#223562 #314D8F #4166BD #6E8ACD #9CAFDD

Accessibility & contrast

On white

5.44

#4166BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#4166BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166BD

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166BD	#FFFFFF	#000000	##FFFFFF
##4166BD	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B70C0

Deuteranopia (green-blind)

#2464BB

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4166bd;
/* rgb */ color: rgb(65, 102, 189);
/* oklch */ color: oklch(52.8% 0.143 264.7);

Tailwind

colors: {
  custom: {
    50: '#8291d1',
    500: '#4166bd',
    950: '#000000',
  },
}

SCSS

$custom: #4166bd;
$custom-light: #8291d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4166bd",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 222.097,
    "s": 48.819,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52817,
    "c": 0.14292,
    "h": 264.7
  },
  "luminance": 0.14301
}

Semantic roles & 50–950 ramp

primary

#4166BD

secondary

#C9B891

accent

#B04FD8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4166BD

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

Preview Lab → · Contrast checker → · Palette generator →