#3966C2#3966C2

#3966C2 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.152 H 262.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3966C2
RGB	rgb(57, 102, 194)
HSL	hsl(220, 55%, 49%)
HSV	hsv(220, 71%, 76%)
CMYK	cmyk(70.6%, 47.4%, 0%, 23.9%)
CIE-LAB	lab(44.61, 15.81, -52.75)
CIE-LCH	lch(44.61, 55.07, 286.68°)
OKLab	oklab(52.78% -0.0193 -0.1512)
OKLCH	oklch(52.78% 0.152 262.7)
XYZ	xyz(16.1729, 14.2660, 52.9297)
Luminance	0.1427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3966C2 #C29539

analogous

#39ABC2 #3966C2 #5139C2

triadic

#3966C2 #C23966 #66C239

tetradic

#3966C2 #C239AB #C29539 #39C251

square

#3966C2 #C239AB #C29539 #39C251

split-complementary

#3966C2 #C25139 #ABC239

monochromatic

#1D3463 #2B4D93 #3966C2 #668AD2 #95AEE0

Accessibility & contrast

On white

5.45

#3966C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3966C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3966C2

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3966C2	#FFFFFF	#000000	##FFFFFF
##3966C2	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3570C5

Deuteranopia (green-blind)

#1364C0

Tritanopia (blue-blind)

#007C8A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3966c2;
/* rgb */ color: rgb(57, 102, 194);
/* oklch */ color: oklch(52.8% 0.152 262.7);

Tailwind

colors: {
  custom: {
    50: '#8091d5',
    500: '#3966c2',
    950: '#000000',
  },
}

SCSS

$custom: #3966c2;
$custom-light: #8091d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3966c2",
  "rgb": {
    "r": 57,
    "g": 102,
    "b": 194
  },
  "hsl": {
    "h": 220.292,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.52783,
    "c": 0.15247,
    "h": 262.7
  },
  "luminance": 0.14268
}

Semantic roles & 50–950 ramp

primary

#3966C2

secondary

#CBB68B

accent

#AD4ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3966C2

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

Preview Lab → · Contrast checker → · Palette generator →