#3166C6#3166C6

#3166C6 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.7% C 0.160 H 261.1°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3166C6
RGB	rgb(49, 102, 198)
HSL	hsl(219, 60%, 48%)
HSV	hsv(219, 75%, 78%)
CMYK	cmyk(75.3%, 48.5%, 0%, 22.4%)
CIE-LAB	lab(44.56, 16.22, -55.16)
CIE-LCH	lch(44.56, 57.49, 286.39°)
OKLab	oklab(52.74% -0.0247 -0.1584)
OKLCH	oklch(52.74% 0.16 261.1)
XYZ	xyz(16.2074, 14.2311, 55.3078)
Luminance	0.1423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3166C6 #C69131

analogous

#31B0C6 #3166C6 #4731C6

triadic

#3166C6 #C63166 #66C631

tetradic

#3166C6 #C631B0 #C69131 #31C647

square

#3166C6 #C631B0 #C69131 #31C647

split-complementary

#3166C6 #C64731 #B0C631

monochromatic

#193364 #254D95 #3166C6 #5D89D7 #8EACE3

Accessibility & contrast

On white

5.46

#3166C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3166C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3166C6

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3166C6	#FFFFFF	#000000	##FFFFFF
##3166C6	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F71CA

Deuteranopia (green-blind)

#0063C4

Tritanopia (blue-blind)

#007D8C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3166c6;
/* rgb */ color: rgb(49, 102, 198);
/* oklch */ color: oklch(52.7% 0.160 261.1);

Tailwind

colors: {
  custom: {
    50: '#7e91d8',
    500: '#3166c6',
    950: '#000000',
  },
}

SCSS

$custom: #3166c6;
$custom-light: #7e91d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3166c6",
  "rgb": {
    "r": 49,
    "g": 102,
    "b": 198
  },
  "hsl": {
    "h": 218.658,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52743,
    "c": 0.16037,
    "h": 261.1
  },
  "luminance": 0.14233
}

Semantic roles & 50–950 ramp

primary

#3166C6

secondary

#CEB485

accent

#AB44E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3166C6

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

Preview Lab → · Contrast checker → · Palette generator →