#3965D3#3965D3

#3965D3 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.8% C 0.177 H 264.7°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3965D3
RGB	rgb(57, 101, 211)
HSL	hsl(223, 64%, 53%)
HSV	hsv(223, 73%, 83%)
CMYK	cmyk(73%, 52.1%, 0%, 17.3%)
CIE-LAB	lab(45.47, 22.69, -61.15)
CIE-LCH	lch(45.47, 65.22, 290.36°)
OKLab	oklab(53.8% -0.0164 -0.176)
OKLCH	oklch(53.8% 0.177 264.7)
XYZ	xyz(18.0947, 14.8784, 63.5336)
Luminance	0.1488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965D3 #D3A739

analogous

#39B2D3 #3965D3 #5A39D3

triadic

#3965D3 #D33965 #65D339

tetradic

#3965D3 #D339B2 #D3A739 #39D35A

square

#3965D3 #D339B2 #D3A739 #39D35A

split-complementary

#3965D3 #D35A39 #B2D339

monochromatic

#1A3577 #264BA9 #3965D3 #6B8CDE #9DB3E9

Accessibility & contrast

On white

5.28

#3965D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3965D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965D3

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965D3	#FFFFFF	#000000	##FFFFFF
##3965D3	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1973D7

Deuteranopia (green-blind)

#0065D1

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3965d3;
/* rgb */ color: rgb(57, 101, 211);
/* oklch */ color: oklch(53.8% 0.177 264.7);

Tailwind

colors: {
  custom: {
    50: '#8390e1',
    500: '#3965d3',
    950: '#000000',
  },
}

SCSS

$custom: #3965d3;
$custom-light: #8390e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3965d3",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 211
  },
  "hsl": {
    "h": 222.857,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.53795,
    "c": 0.17672,
    "h": 264.7
  },
  "luminance": 0.1488
}

Semantic roles & 50–950 ramp

primary

#3965D3

secondary

#D5C292

accent

#B741E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3965D3

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

Preview Lab → · Contrast checker → · Palette generator →