#3963C5#3963C5

#3963C5 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.4% C 0.160 H 264.2°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#3963C5
RGB	rgb(57, 99, 197)
HSL	hsl(222, 55%, 50%)
HSV	hsv(222, 71%, 77%)
CMYK	cmyk(71.1%, 49.7%, 0%, 22.7%)
CIE-LAB	lab(43.98, 18.83, -55.51)
CIE-LCH	lch(43.98, 58.62, 288.74°)
OKLab	oklab(52.36% -0.0163 -0.1594)
OKLCH	oklch(52.36% 0.16 264.2)
XYZ	xyz(16.2237, 13.8231, 54.6256)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963C5 #C59B39

analogous

#39A9C5 #3963C5 #5539C5

triadic

#3963C5 #C53963 #63C539

tetradic

#3963C5 #C539A9 #C59B39 #39C555

square

#3963C5 #C539A9 #C59B39 #39C555

split-complementary

#3963C5 #C55539 #A9C539

monochromatic

#1E3366 #2B4B96 #3963C5 #6888D3 #97ADE1

Accessibility & contrast

On white

5.58

#3963C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3963C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963C5

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963C5	#FFFFFF	#000000	##FFFFFF
##3963C5	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6FC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3963c5;
/* rgb */ color: rgb(57, 99, 197);
/* oklch */ color: oklch(52.4% 0.160 264.2);

Tailwind

colors: {
  custom: {
    50: '#818ed7',
    500: '#3963c5',
    950: '#000000',
  },
}

SCSS

$custom: #3963c5;
$custom-light: #818ed7;
$custom-dark: #000000;

JSON

{
  "hex": "#3963c5",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 197
  },
  "hsl": {
    "h": 222,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52361,
    "c": 0.16023,
    "h": 264.2
  },
  "luminance": 0.13825
}

Semantic roles & 50–950 ramp

primary

#3963C5

secondary

#CDBA8D

accent

#B249DE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3963C5

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

Preview Lab → · Contrast checker → · Palette generator →