#3F64CE#3F64CE

#3F64CE is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.5% C 0.169 H 266.3°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F64CE
RGB	rgb(63, 100, 206)
HSL	hsl(224, 59%, 53%)
HSV	hsv(224, 69%, 81%)
CMYK	cmyk(69.4%, 51.5%, 0%, 19.2%)
CIE-LAB	lab(45.12, 22.33, -58.84)
CIE-LCH	lch(45.12, 62.93, 290.78°)
OKLab	oklab(53.49% -0.0111 -0.1691)
OKLCH	oklch(53.49% 0.169 266.3)
XYZ	xyz(17.7438, 14.6255, 60.2685)
Luminance	0.1463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F64CE #CEA93F

analogous

#3FABCE #3F64CE #623FCE

triadic

#3F64CE #CE3F64 #64CE3F

tetradic

#3F64CE #CE3FAB #CEA93F #3FCE62

square

#3F64CE #CE3FAB #CEA93F #3FCE62

split-complementary

#3F64CE #CE623F #ABCE3F

monochromatic

#1E3475 #2A4AA6 #3F64CE #708BDA #A1B3E7

Accessibility & contrast

On white

5.35

#3F64CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3F64CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F64CE

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F64CE	#FFFFFF	#000000	##FFFFFF
##3F64CE	1.00	5.35	3.93	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2172D2

Deuteranopia (green-blind)

#0065CC

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f64ce;
/* rgb */ color: rgb(63, 100, 206);
/* oklch */ color: oklch(53.5% 0.169 266.3);

Tailwind

colors: {
  custom: {
    50: '#858fde',
    500: '#3f64ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f64ce;
$custom-light: #858fde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f64ce",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 206
  },
  "hsl": {
    "h": 224.476,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.53492,
    "c": 0.16943,
    "h": 266.3
  },
  "luminance": 0.14627
}

Semantic roles & 50–950 ramp

primary

#3F64CE

secondary

#D3C395

accent

#BA45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F64CE

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

Preview Lab → · Contrast checker → · Palette generator →