#3F63C2#3F63C2

#3F63C2 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.4% C 0.154 H 265.7°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F63C2
RGB	rgb(63, 99, 194)
HSL	hsl(224, 52%, 50%)
HSV	hsv(224, 68%, 76%)
CMYK	cmyk(67.5%, 49%, 0%, 23.9%)
CIE-LAB	lab(44.05, 18.64, -53.64)
CIE-LCH	lch(44.05, 56.79, 289.16°)
OKLab	oklab(52.43% -0.0115 -0.1538)
OKLCH	oklch(52.43% 0.154 265.7)
XYZ	xyz(16.2460, 13.8739, 52.8502)
Luminance	0.1388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F63C2 #C29E3F

analogous

#3FA5C2 #3F63C2 #5C3FC2

triadic

#3F63C2 #C23F63 #63C23F

tetradic

#3F63C2 #C23FA5 #C29E3F #3FC25C

square

#3F63C2 #C23FA5 #C29E3F #3FC25C

split-complementary

#3F63C2 #C25C3F #A5C23F

monochromatic

#203466 #2F4B95 #3F63C2 #6D89D1 #9CAEE0

Accessibility & contrast

On white

5.56

#3F63C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3F63C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F63C2

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F63C2	#FFFFFF	#000000	##FFFFFF
##3F63C2	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6EC5

Deuteranopia (green-blind)

#0962C0

Tritanopia (blue-blind)

#007989

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f63c2;
/* rgb */ color: rgb(63, 99, 194);
/* oklch */ color: oklch(52.4% 0.154 265.7);

Tailwind

colors: {
  custom: {
    50: '#828ed5',
    500: '#3f63c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f63c2;
$custom-light: #828ed5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f63c2",
  "rgb": {
    "r": 63,
    "g": 99,
    "b": 194
  },
  "hsl": {
    "h": 223.511,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52428,
    "c": 0.15422,
    "h": 265.7
  },
  "luminance": 0.13875
}

Semantic roles & 50–950 ramp

primary

#3F63C2

secondary

#CCBC91

accent

#B44DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3F63C2

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

Preview Lab → · Contrast checker → · Palette generator →