#3166C2#3166C2

#3166C2 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.5% C 0.155 H 260.6°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3166C2
RGB	rgb(49, 102, 194)
HSL	hsl(218, 60%, 48%)
HSV	hsv(218, 75%, 76%)
CMYK	cmyk(74.7%, 47.4%, 0%, 23.9%)
CIE-LAB	lab(44.30, 14.72, -53.27)
CIE-LCH	lch(44.30, 55.26, 285.44°)
OKLab	oklab(52.46% -0.0253 -0.1529)
OKLCH	oklch(52.46% 0.155 260.6)
XYZ	xyz(15.7521, 14.0490, 52.9100)
Luminance	0.1405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3166C2 #C28D31

analogous

#31AEC2 #3166C2 #4431C2

triadic

#3166C2 #C23166 #66C231

tetradic

#3166C2 #C231AE #C28D31 #31C244

square

#3166C2 #C231AE #C28D31 #31C244

split-complementary

#3166C2 #C24431 #AEC231

monochromatic

#183360 #254C91 #3166C2 #5B88D6 #8CABE2

Accessibility & contrast

On white

5.51

#3166C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3166C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3166C2

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3166C2	#FFFFFF	#000000	##FFFFFF
##3166C2	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3470C5

Deuteranopia (green-blind)

#0963C0

Tritanopia (blue-blind)

#007C8A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3166c2;
/* rgb */ color: rgb(49, 102, 194);
/* oklch */ color: oklch(52.5% 0.155 260.6);

Tailwind

colors: {
  custom: {
    50: '#7d91d5',
    500: '#3166c2',
    950: '#000000',
  },
}

SCSS

$custom: #3166c2;
$custom-light: #7d91d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3166c2",
  "rgb": {
    "r": 49,
    "g": 102,
    "b": 194
  },
  "hsl": {
    "h": 218.069,
    "s": 59.671,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5246,
    "c": 0.15497,
    "h": 260.6
  },
  "luminance": 0.14051
}

Semantic roles & 50–950 ramp

primary

#3166C2

secondary

#CCB183

accent

#A945E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3166C2

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

Preview Lab → · Contrast checker → · Palette generator →