#3F52C6#3F52C6

#3F52C6 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.4% C 0.181 H 271.1°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F52C6
RGB	rgb(63, 82, 198)
HSL	hsl(232, 54%, 51%)
HSV	hsv(232, 68%, 78%)
CMYK	cmyk(68.2%, 58.6%, 0%, 22.4%)
CIE-LAB	lab(39.86, 30.96, -62.74)
CIE-LCH	lch(39.86, 69.97, 296.26°)
OKLab	oklab(49.36% 0.0035 -0.1808)
OKLCH	oklch(49.36% 0.181 271.1)
XYZ	xyz(15.2568, 11.1671, 54.7666)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52C6 #C6B33F

analogous

#3F95C6 #3F52C6 #6F3FC6

triadic

#3F52C6 #C63F52 #52C63F

tetradic

#3F52C6 #C63F95 #C6B33F #3FC66F

square

#3F52C6 #C63F95 #C6B33F #3FC66F

split-complementary

#3F52C6 #C66F3F #95C63F

monochromatic

#202A6B #2E3D9A #3F52C6 #6E7DD4 #9DA7E2

Accessibility & contrast

On white

6.49

#3F52C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3F52C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52C6

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52C6	#FFFFFF	#000000	##FFFFFF
##3F52C6	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CA

Deuteranopia (green-blind)

#0058C4

Tritanopia (blue-blind)

#006F84

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f52c6;
/* rgb */ color: rgb(63, 82, 198);
/* oklch */ color: oklch(49.4% 0.181 271.1);

Tailwind

colors: {
  custom: {
    50: '#8482d8',
    500: '#3f52c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f52c6;
$custom-light: #8482d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52c6",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 198
  },
  "hsl": {
    "h": 231.556,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4936,
    "c": 0.18084,
    "h": 271.1
  },
  "luminance": 0.11169
}

Semantic roles & 50–950 ramp

primary

#3F52C6

secondary

#CEC693

accent

#C94ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3F52C6

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

Preview Lab → · Contrast checker → · Palette generator →