#3F65C2#3F65C2

#3F65C2 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.152 H 264.9°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F65C2
RGB	rgb(63, 101, 194)
HSL	hsl(223, 52%, 50%)
HSV	hsv(223, 68%, 76%)
CMYK	cmyk(67.5%, 47.9%, 0%, 23.9%)
CIE-LAB	lab(44.60, 17.37, -52.76)
CIE-LCH	lch(44.60, 55.54, 288.22°)
OKLab	oklab(52.85% -0.0134 -0.1512)
OKLCH	oklch(52.85% 0.152 264.9)
XYZ	xyz(16.4378, 14.2576, 52.9142)
Luminance	0.1426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65C2 #C29C3F

analogous

#3FA7C2 #3F65C2 #5A3FC2

triadic

#3F65C2 #C23F65 #65C23F

tetradic

#3F65C2 #C23FA7 #C29C3F #3FC25A

square

#3F65C2 #C23FA7 #C29C3F #3FC25A

split-complementary

#3F65C2 #C25A3F #A7C23F

monochromatic

#203566 #2F4D95 #3F65C2 #6D8AD1 #9CB0E0

Accessibility & contrast

On white

5.45

#3F65C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3F65C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65C2

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65C2	#FFFFFF	#000000	##FFFFFF
##3F65C2	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)

#3470C5

Deuteranopia (green-blind)

#1564C0

Tritanopia (blue-blind)

#007B8A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3f65c2;
/* rgb */ color: rgb(63, 101, 194);
/* oklch */ color: oklch(52.8% 0.152 264.9);

Tailwind

colors: {
  custom: {
    50: '#8290d5',
    500: '#3f65c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f65c2;
$custom-light: #8290d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65c2",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 194
  },
  "hsl": {
    "h": 222.595,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52847,
    "c": 0.15176,
    "h": 264.9
  },
  "luminance": 0.14259
}

Semantic roles & 50–950 ramp

primary

#3F65C2

secondary

#CCBB91

accent

#B24DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3F65C2

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

Preview Lab → · Contrast checker → · Palette generator →