#3963C6#3963C6

#3963C6 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.4% C 0.162 H 264.3°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3963C6
RGB	rgb(57, 99, 198)
HSL	hsl(222, 55%, 50%)
HSV	hsv(222, 71%, 78%)
CMYK	cmyk(71.2%, 50%, 0%, 22.4%)
CIE-LAB	lab(44.04, 19.20, -55.98)
CIE-LCH	lch(44.04, 59.18, 288.93°)
OKLab	oklab(52.43% -0.0162 -0.1608)
OKLCH	oklch(52.43% 0.162 264.3)
XYZ	xyz(16.3386, 13.8690, 55.2311)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963C6 #C69C39

analogous

#39A9C6 #3963C6 #5639C6

triadic

#3963C6 #C63963 #63C639

tetradic

#3963C6 #C639A9 #C69C39 #39C656

square

#3963C6 #C639A9 #C69C39 #39C656

split-complementary

#3963C6 #C65639 #A9C639

monochromatic

#1E3367 #2B4B96 #3963C6 #6988D4 #98AEE1

Accessibility & contrast

On white

5.56

#3963C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3963C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963C6

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963C6	#FFFFFF	#000000	##FFFFFF
##3963C6	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#296FCA

Deuteranopia (green-blind)

#0062C4

Tritanopia (blue-blind)

#007A8B

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3963c6;
/* rgb */ color: rgb(57, 99, 198);
/* oklch */ color: oklch(52.4% 0.162 264.3);

Tailwind

colors: {
  custom: {
    50: '#818ed8',
    500: '#3963c6',
    950: '#000000',
  },
}

SCSS

$custom: #3963c6;
$custom-light: #818ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#3963c6",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 198
  },
  "hsl": {
    "h": 222.128,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.52433,
    "c": 0.16159,
    "h": 264.3
  },
  "luminance": 0.13871
}

Semantic roles & 50–950 ramp

primary

#3963C6

secondary

#CDBA8E

accent

#B249DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3963C6

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

Preview Lab → · Contrast checker → · Palette generator →