#3F63D6#3F63D6

#3F63D6 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.9% C 0.181 H 267.0°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3F63D6
RGB	rgb(63, 99, 214)
HSL	hsl(226, 65%, 54%)
HSV	hsv(226, 71%, 84%)
CMYK	cmyk(70.6%, 53.7%, 0%, 16.1%)
CIE-LAB	lab(45.41, 25.84, -62.95)
CIE-LCH	lch(45.41, 68.05, 292.32°)
OKLab	oklab(53.89% -0.0096 -0.1812)
OKLCH	oklch(53.89% 0.181 267)
XYZ	xyz(18.6451, 14.8336, 65.4858)
Luminance	0.1484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F63D6 #D6B23F

analogous

#3FAFD6 #3F63D6 #663FD6

triadic

#3F63D6 #D63F63 #63D63F

tetradic

#3F63D6 #D63FAF #D6B23F #3FD666

square

#3F63D6 #D63FAF #D6B23F #3FD666

split-complementary

#3F63D6 #D6663F #AFD63F

monochromatic

#1B337F #2647B2 #3F63D6 #718CE1 #A4B5EC

Accessibility & contrast

On white

5.29

#3F63D6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3F63D6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F63D6

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F63D6	#FFFFFF	#000000	##FFFFFF
##3F63D6	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0473DA

Deuteranopia (green-blind)

#0065D4

Tritanopia (blue-blind)

#007F93

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f63d6;
/* rgb */ color: rgb(63, 99, 214);
/* oklch */ color: oklch(53.9% 0.181 267.0);

Tailwind

colors: {
  custom: {
    50: '#868ee3',
    500: '#3f63d6',
    950: '#000000',
  },
}

SCSS

$custom: #3f63d6;
$custom-light: #868ee3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f63d6",
  "rgb": {
    "r": 63,
    "g": 99,
    "b": 214
  },
  "hsl": {
    "h": 225.695,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.53886,
    "c": 0.18143,
    "h": 267
  },
  "luminance": 0.14835
}

Semantic roles & 50–950 ramp

primary

#3F63D6

secondary

#D8C998

accent

#C040E8

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3F63D6

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

Preview Lab → · Contrast checker → · Palette generator →