#3F6DE1#3F6DE1

#3F6DE1 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.7% C 0.184 H 264.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DE1
RGB	rgb(63, 109, 225)
HSL	hsl(223, 73%, 56%)
HSV	hsv(223, 72%, 88%)
CMYK	cmyk(72%, 51.6%, 0%, 11.8%)
CIE-LAB	lab(48.79, 23.48, -63.71)
CIE-LCH	lch(48.79, 67.90, 290.23°)
OKLab	oklab(56.69% -0.0166 -0.1832)
OKLCH	oklch(56.69% 0.184 264.8)
XYZ	xyz(21.1044, 17.4280, 73.4713)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DE1 #E1B33F

analogous

#3FBEE1 #3F6DE1 #623FE1

triadic

#3F6DE1 #E13F6D #6DE13F

tetradic

#3F6DE1 #E13FBE #E1B33F #3FE162

square

#3F6DE1 #E13FBE #E1B33F #3FE162

split-complementary

#3F6DE1 #E1623F #BEE13F

monochromatic

#16398F #1F4EC4 #3F6DE1 #7495E9 #A9BDF2

Accessibility & contrast

On white

4.68

#3F6DE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3F6DE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DE1

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DE1	#FFFFFF	#000000	##FFFFFF
##3F6DE1	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#207CE5

Deuteranopia (green-blind)

#006DDF

Tritanopia (blue-blind)

#00899C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f6de1;
/* rgb */ color: rgb(63, 109, 225);
/* oklch */ color: oklch(56.7% 0.184 264.8);

Tailwind

colors: {
  custom: {
    50: '#8896eb',
    500: '#3f6de1',
    950: '#000000',
  },
}

SCSS

$custom: #3f6de1;
$custom-light: #8896eb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6de1",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 225
  },
  "hsl": {
    "h": 222.963,
    "s": 72.973,
    "l": 56.471
  },
  "oklch": {
    "l": 0.56692,
    "c": 0.184,
    "h": 264.8
  },
  "luminance": 0.1743
}

Semantic roles & 50–950 ramp

primary

#3F6DE1

secondary

#DFCC9D

accent

#BC38F0

background

#F9F9FE

surface

#F1F1FD

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3F6DE1

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

Preview Lab → · Contrast checker → · Palette generator →