#4166B2#4166B2

#4166B2 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.127 H 263.1°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#4166B2
RGB	rgb(65, 102, 178)
HSL	hsl(220, 47%, 48%)
HSV	hsv(220, 63%, 70%)
CMYK	cmyk(63.5%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(44.00, 11.36, -44.40)
CIE-LCH	lch(44.00, 45.83, 284.35°)
OKLab	oklab(52.1% -0.0153 -0.1266)
OKLCH	oklch(52.1% 0.127 263.1)
XYZ	xyz(14.9644, 13.8395, 43.9935)
Luminance	0.1384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166B2 #B28D41

analogous

#419EB2 #4166B2 #5441B2

triadic

#4166B2 #B24166 #66B241

tetradic

#4166B2 #B2419E #B28D41 #41B254

square

#4166B2 #B2419E #B28D41 #41B254

split-complementary

#4166B2 #B25441 #9EB241

monochromatic

#203358 #314C85 #4166B2 #6888C8 #95ABD8

Accessibility & contrast

On white

5.57

#4166B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#4166B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166B2

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166B2	#FFFFFF	#000000	##FFFFFF
##4166B2	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436EB5

Deuteranopia (green-blind)

#3263B0

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4166b2;
/* rgb */ color: rgb(65, 102, 178);
/* oklch */ color: oklch(52.1% 0.127 263.1);

Tailwind

colors: {
  custom: {
    50: '#8091c9',
    500: '#4166b2',
    950: '#000000',
  },
}

SCSS

$custom: #4166b2;
$custom-light: #8091c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4166b2",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 220.354,
    "s": 46.502,
    "l": 47.647
  },
  "oklch": {
    "l": 0.521,
    "c": 0.12748,
    "h": 263.1
  },
  "luminance": 0.13841
}

Semantic roles & 50–950 ramp

primary

#4166B2

secondary

#C4B18B

accent

#AB52D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4166B2

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

Preview Lab → · Contrast checker → · Palette generator →