#3F52C4#3F52C4

#3F52C4 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.2% C 0.178 H 271.1°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F52C4
RGB	rgb(63, 82, 196)
HSL	hsl(231, 53%, 51%)
HSV	hsv(231, 68%, 77%)
CMYK	cmyk(67.9%, 58.2%, 0%, 23.1%)
CIE-LAB	lab(39.71, 30.25, -61.83)
CIE-LCH	lch(39.71, 68.83, 296.07°)
OKLab	oklab(49.2% 0.0035 -0.1781)
OKLCH	oklch(49.2% 0.178 271.1)
XYZ	xyz(15.0276, 11.0754, 53.5597)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52C4 #C4B13F

analogous

#3F94C4 #3F52C4 #6F3FC4

triadic

#3F52C4 #C43F52 #52C43F

tetradic

#3F52C4 #C43F94 #C4B13F #3FC46F

square

#3F52C4 #C43F94 #C4B13F #3FC46F

split-complementary

#3F52C4 #C46F3F #94C43F

monochromatic

#202A68 #2E3D97 #3F52C4 #6E7CD2 #9DA6E1

Accessibility & contrast

On white

6.53

#3F52C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3F52C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52C4

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52C4	#FFFFFF	#000000	##FFFFFF
##3F52C4	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#0058C2

Tritanopia (blue-blind)

#006E83

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f52c4;
/* rgb */ color: rgb(63, 82, 196);
/* oklch */ color: oklch(49.2% 0.178 271.1);

Tailwind

colors: {
  custom: {
    50: '#8482d7',
    500: '#3f52c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f52c4;
$custom-light: #8482d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52c4",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 196
  },
  "hsl": {
    "h": 231.429,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.49198,
    "c": 0.17815,
    "h": 271.1
  },
  "luminance": 0.11077
}

Semantic roles & 50–950 ramp

primary

#3F52C4

secondary

#CDC492

accent

#C84BDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F52C4

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

Preview Lab → · Contrast checker → · Palette generator →