#3F52D4#3F52D4

#3F52D4 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.5% C 0.199 H 271.0°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F52D4
RGB	rgb(63, 82, 212)
HSL	hsl(232, 63%, 54%)
HSV	hsv(232, 70%, 83%)
CMYK	cmyk(70.3%, 61.3%, 0%, 16.9%)
CIE-LAB	lab(40.97, 35.88, -69.03)
CIE-LCH	lch(40.97, 77.79, 297.46°)
OKLab	oklab(50.52% 0.0033 -0.1992)
OKLCH	oklch(50.52% 0.199 271)
XYZ	xyz(16.9468, 11.8431, 63.6674)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52D4 #D4C13F

analogous

#3F9DD4 #3F52D4 #773FD4

triadic

#3F52D4 #D43F52 #52D43F

tetradic

#3F52D4 #D43F9D #D4C13F #3FD477

square

#3F52D4 #D43F9D #D4C13F #3FD477

split-complementary

#3F52D4 #D4773F #9DD43F

monochromatic

#1C287D #2738AF #3F52D4 #717FDF #A3ACEA

Accessibility & contrast

On white

6.23

#3F52D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#3F52D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52D4

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52D4	#FFFFFF	#000000	##FFFFFF
##3F52D4	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D8

Deuteranopia (green-blind)

#005AD1

Tritanopia (blue-blind)

#00738B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f52d4;
/* rgb */ color: rgb(63, 82, 212);
/* oklch */ color: oklch(50.5% 0.199 271.0);

Tailwind

colors: {
  custom: {
    50: '#8782e2',
    500: '#3f52d4',
    950: '#000000',
  },
}

SCSS

$custom: #3f52d4;
$custom-light: #8782e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52d4",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 212
  },
  "hsl": {
    "h": 232.349,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50524,
    "c": 0.19928,
    "h": 271
  },
  "luminance": 0.11845
}

Semantic roles & 50–950 ramp

primary

#3F52D4

secondary

#D7CF98

accent

#D141E6

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A15

muted

#7E7C84

Preview Lab

Preview with #3F52D4

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

Preview Lab → · Contrast checker → · Palette generator →