#3F52C2#3F52C2

#3F52C2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.0% C 0.175 H 271.1°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F52C2
RGB	rgb(63, 82, 194)
HSL	hsl(231, 52%, 50%)
HSV	hsv(231, 68%, 76%)
CMYK	cmyk(67.5%, 57.7%, 0%, 23.9%)
CIE-LAB	lab(39.56, 29.54, -60.91)
CIE-LCH	lch(39.56, 67.70, 295.87°)
OKLab	oklab(49.04% 0.0034 -0.1754)
OKLCH	oklch(49.04% 0.175 271.1)
XYZ	xyz(14.8015, 10.9850, 52.3688)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52C2 #C2AF3F

analogous

#3F93C2 #3F52C2 #6E3FC2

triadic

#3F52C2 #C23F52 #52C23F

tetradic

#3F52C2 #C23F93 #C2AF3F #3FC26E

square

#3F52C2 #C23F93 #C2AF3F #3FC26E

split-complementary

#3F52C2 #C26E3F #93C23F

monochromatic

#202B66 #2F3E95 #3F52C2 #6D7CD1 #9CA6E0

Accessibility & contrast

On white

6.57

#3F52C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3F52C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52C2

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52C2	#FFFFFF	#000000	##FFFFFF
##3F52C2	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C6

Deuteranopia (green-blind)

#0057C0

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f52c2;
/* rgb */ color: rgb(63, 82, 194);
/* oklch */ color: oklch(49.0% 0.175 271.1);

Tailwind

colors: {
  custom: {
    50: '#8382d5',
    500: '#3f52c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f52c2;
$custom-light: #8382d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52c2",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 194
  },
  "hsl": {
    "h": 231.298,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49037,
    "c": 0.17546,
    "h": 271.1
  },
  "luminance": 0.10986
}

Semantic roles & 50–950 ramp

primary

#3F52C2

secondary

#CCC391

accent

#C74DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F52C2

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

Preview Lab → · Contrast checker → · Palette generator →