#3F64CD#3F64CD

#3F64CD is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.4% C 0.168 H 266.2°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F64CD
RGB	rgb(63, 100, 205)
HSL	hsl(224, 59%, 53%)
HSV	hsv(224, 69%, 80%)
CMYK	cmyk(69.3%, 51.2%, 0%, 19.6%)
CIE-LAB	lab(45.05, 21.97, -58.37)
CIE-LCH	lch(45.05, 62.37, 290.62°)
OKLab	oklab(53.42% -0.0112 -0.1677)
OKLCH	oklch(53.42% 0.168 266.2)
XYZ	xyz(17.6227, 14.5771, 59.6307)
Luminance	0.1458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F64CD #CDA83F

analogous

#3FABCD #3F64CD #613FCD

triadic

#3F64CD #CD3F64 #64CD3F

tetradic

#3F64CD #CD3FAB #CDA83F #3FCD61

square

#3F64CD #CD3FAB #CDA83F #3FCD61

split-complementary

#3F64CD #CD613F #ABCD3F

monochromatic

#1E3474 #2B4AA4 #3F64CD #708BDA #A0B2E6

Accessibility & contrast

On white

5.36

#3F64CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#3F64CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F64CD

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F64CD	#FFFFFF	#000000	##FFFFFF
##3F64CD	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2371D1

Deuteranopia (green-blind)

#0064CB

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f64cd;
/* rgb */ color: rgb(63, 100, 205);
/* oklch */ color: oklch(53.4% 0.168 266.2);

Tailwind

colors: {
  custom: {
    50: '#858fdd',
    500: '#3f64cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f64cd;
$custom-light: #858fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f64cd",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 205
  },
  "hsl": {
    "h": 224.366,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5342,
    "c": 0.16807,
    "h": 266.2
  },
  "luminance": 0.14579
}

Semantic roles & 50–950 ramp

primary

#3F64CD

secondary

#D3C395

accent

#B946E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F64CD

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

Preview Lab → · Contrast checker → · Palette generator →