#3F64D0#3F64D0

#3F64D0 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.6% C 0.172 H 266.4°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3F64D0
RGB	rgb(63, 100, 208)
HSL	hsl(225, 61%, 53%)
HSV	hsv(225, 70%, 82%)
CMYK	cmyk(69.7%, 51.9%, 0%, 18.4%)
CIE-LAB	lab(45.25, 23.05, -59.77)
CIE-LCH	lch(45.25, 64.06, 291.09°)
OKLab	oklab(53.64% -0.0109 -0.1718)
OKLCH	oklch(53.64% 0.172 266.4)
XYZ	xyz(17.9883, 14.7233, 61.5562)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F64D0 #D0AB3F

analogous

#3FACD0 #3F64D0 #633FD0

triadic

#3F64D0 #D03F64 #64D03F

tetradic

#3F64D0 #D03FAC #D0AB3F #3FD063

square

#3F64D0 #D03FAC #D0AB3F #3FD063

split-complementary

#3F64D0 #D0633F #ACD03F

monochromatic

#1D3477 #294AA9 #3F64D0 #708CDC #A1B3E8

Accessibility & contrast

On white

5.32

#3F64D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#3F64D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F64D0

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F64D0	#FFFFFF	#000000	##FFFFFF
##3F64D0	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D72D4

Deuteranopia (green-blind)

#0065CE

Tritanopia (blue-blind)

#007E90

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f64d0;
/* rgb */ color: rgb(63, 100, 208);
/* oklch */ color: oklch(53.6% 0.172 266.4);

Tailwind

colors: {
  custom: {
    50: '#858fdf',
    500: '#3f64d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f64d0;
$custom-light: #858fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f64d0",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 208
  },
  "hsl": {
    "h": 224.69,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.53639,
    "c": 0.17214,
    "h": 266.4
  },
  "luminance": 0.14725
}

Semantic roles & 50–950 ramp

primary

#3F64D0

secondary

#D5C596

accent

#BB44E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F64D0

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

Preview Lab → · Contrast checker → · Palette generator →