#3F63DC#3F63DC

#3F63DC is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.3% C 0.189 H 267.2°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3F63DC
RGB	rgb(63, 99, 220)
HSL	hsl(226, 69%, 55%)
HSV	hsv(226, 71%, 86%)
CMYK	cmyk(71.4%, 55%, 0%, 13.7%)
CIE-LAB	lab(45.83, 28.00, -65.67)
CIE-LCH	lch(45.83, 71.39, 293.09°)
OKLab	oklab(54.34% -0.0092 -0.1892)
OKLCH	oklch(54.34% 0.189 267.2)
XYZ	xyz(19.4255, 15.1457, 69.5959)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F63DC #DCB83F

analogous

#3FB1DC #3F63DC #693FDC

triadic

#3F63DC #DC3F63 #63DC3F

tetradic

#3F63DC #DC3FB1 #DCB83F #3FDC69

square

#3F63DC #DC3FB1 #DCB83F #3FDC69

split-complementary

#3F63DC #DC693F #B1DC3F

monochromatic

#193288 #2245BC #3F63DC #738DE5 #A7B7EF

Accessibility & contrast

On white

5.21

#3F63DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#3F63DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F63DC

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F63DC	#FFFFFF	#000000	##FFFFFF
##3F63DC	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074E0

Deuteranopia (green-blind)

#0066DA

Tritanopia (blue-blind)

#008196

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f63dc;
/* rgb */ color: rgb(63, 99, 220);
/* oklch */ color: oklch(54.3% 0.189 267.2);

Tailwind

colors: {
  custom: {
    50: '#888ee8',
    500: '#3f63dc',
    950: '#000000',
  },
}

SCSS

$custom: #3f63dc;
$custom-light: #888ee8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f63dc",
  "rgb": {
    "r": 63,
    "g": 99,
    "b": 220
  },
  "hsl": {
    "h": 226.242,
    "s": 69.163,
    "l": 55.49
  },
  "oklch": {
    "l": 0.54343,
    "c": 0.18941,
    "h": 267.2
  },
  "luminance": 0.15148
}

Semantic roles & 50–950 ramp

primary

#3F63DC

secondary

#DCCD9B

accent

#C43CEC

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3F63DC

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

Preview Lab → · Contrast checker → · Palette generator →