#3F53E2#3F53E2

#3F53E2 is a mid, highly saturated blue. Relative luminance 0.127; OKLCH L 51.9% C 0.216 H 270.6°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F53E2
RGB	rgb(63, 83, 226)
HSL	hsl(233, 74%, 57%)
HSV	hsv(233, 72%, 89%)
CMYK	cmyk(72.1%, 63.3%, 0%, 11.4%)
CIE-LAB	lab(42.36, 40.13, -74.75)
CIE-LCH	lch(42.36, 84.84, 298.23°)
OKLab	oklab(51.91% 0.0021 -0.216)
OKLCH	oklch(51.91% 0.216 270.6)
XYZ	xyz(18.8659, 12.7323, 73.4001)
Luminance	0.1273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53E2 #E2CE3F

analogous

#3FA5E2 #3F53E2 #7D3FE2

triadic

#3F53E2 #E23F53 #53E23F

tetradic

#3F53E2 #E23FA5 #E2CE3F #3FE27D

square

#3F53E2 #E23FA5 #E2CE3F #3FE27D

split-complementary

#3F53E2 #E27D3F #A5E23F

monochromatic

#162591 #1E33C6 #3F53E2 #7483EA #A9B2F2

Accessibility & contrast

On white

5.92

#3F53E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3F53E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53E2

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53E2	#FFFFFF	#000000	##FFFFFF
##3F53E2	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE7

Deuteranopia (green-blind)

#005CDF

Tritanopia (blue-blind)

#007893

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f53e2;
/* rgb */ color: rgb(63, 83, 226);
/* oklch */ color: oklch(51.9% 0.216 270.6);

Tailwind

colors: {
  custom: {
    50: '#8a83ec',
    500: '#3f53e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f53e2;
$custom-light: #8a83ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53e2",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 226
  },
  "hsl": {
    "h": 232.638,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.51905,
    "c": 0.21603,
    "h": 270.6
  },
  "luminance": 0.12734
}

Semantic roles & 50–950 ramp

primary

#3F53E2

secondary

#E0D89D

accent

#DA37F0

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #3F53E2

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

Preview Lab → · Contrast checker → · Palette generator →