#3965CF#3965CF

#3965CF is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.5% C 0.171 H 264.4°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#3965CF
RGB	rgb(57, 101, 207)
HSL	hsl(222, 61%, 52%)
HSV	hsv(222, 72%, 81%)
CMYK	cmyk(72.5%, 51.2%, 0%, 18.8%)
CIE-LAB	lab(45.19, 21.22, -59.30)
CIE-LCH	lch(45.19, 62.98, 289.69°)
OKLab	oklab(53.5% -0.0168 -0.1705)
OKLCH	oklch(53.5% 0.171 264.4)
XYZ	xyz(17.5995, 14.6803, 60.9254)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965CF #CFA339

analogous

#39B0CF #3965CF #5839CF

triadic

#3965CF #CF3965 #65CF39

tetradic

#3965CF #CF39B0 #CFA339 #39CF58

square

#3965CF #CF39B0 #CFA339 #39CF58

split-complementary

#3965CF #CF5839 #B0CF39

monochromatic

#1C3572 #284CA3 #3965CF #6A8BDB #9CB2E7

Accessibility & contrast

On white

5.33

#3965CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#3965CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965CF

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965CF	#FFFFFF	#000000	##FFFFFF
##3965CF	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2172D3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#007E90

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3965cf;
/* rgb */ color: rgb(57, 101, 207);
/* oklch */ color: oklch(53.5% 0.171 264.4);

Tailwind

colors: {
  custom: {
    50: '#8290de',
    500: '#3965cf',
    950: '#000000',
  },
}

SCSS

$custom: #3965cf;
$custom-light: #8290de;
$custom-dark: #000000;

JSON

{
  "hex": "#3965cf",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 207
  },
  "hsl": {
    "h": 222.4,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.535,
    "c": 0.17136,
    "h": 264.4
  },
  "luminance": 0.14682
}

Semantic roles & 50–950 ramp

primary

#3965CF

secondary

#D3C091

accent

#B544E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3965CF

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

Preview Lab → · Contrast checker → · Palette generator →