#3F52E2#3F52E2

#3F52E2 is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.7% C 0.217 H 270.7°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F52E2
RGB	rgb(63, 82, 226)
HSL	hsl(233, 74%, 57%)
HSV	hsv(233, 72%, 89%)
CMYK	cmyk(72.1%, 63.7%, 0%, 11.4%)
CIE-LAB	lab(42.12, 40.74, -75.13)
CIE-LCH	lch(42.12, 85.46, 298.47°)
OKLab	oklab(51.73% 0.0028 -0.2171)
OKLCH	oklch(51.73% 0.217 270.7)
XYZ	xyz(18.7900, 12.5804, 73.3748)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52E2 #E2CF3F

analogous

#3FA4E2 #3F52E2 #7E3FE2

triadic

#3F52E2 #E23F52 #52E23F

tetradic

#3F52E2 #E23FA4 #E2CF3F #3FE27E

square

#3F52E2 #E23FA4 #E2CF3F #3FE27E

split-complementary

#3F52E2 #E27E3F #A4E23F

monochromatic

#162491 #1E31C6 #3F52E2 #7482EA #A9B2F2

Accessibility & contrast

On white

5.97

#3F52E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3F52E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52E2

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52E2	#FFFFFF	#000000	##FFFFFF
##3F52E2	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE7

Deuteranopia (green-blind)

#005CDF

Tritanopia (blue-blind)

#007893

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f52e2;
/* rgb */ color: rgb(63, 82, 226);
/* oklch */ color: oklch(51.7% 0.217 270.7);

Tailwind

colors: {
  custom: {
    50: '#8a82ec',
    500: '#3f52e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f52e2;
$custom-light: #8a82ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52e2",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 226
  },
  "hsl": {
    "h": 233.006,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.51734,
    "c": 0.21717,
    "h": 270.7
  },
  "luminance": 0.12582
}

Semantic roles & 50–950 ramp

primary

#3F52E2

secondary

#E0D89D

accent

#DB37F0

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #3F52E2

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

Preview Lab → · Contrast checker → · Palette generator →