#3F65CD#3F65CD

#3F65CD is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.6% C 0.167 H 265.9°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F65CD
RGB	rgb(63, 101, 205)
HSL	hsl(224, 59%, 53%)
HSV	hsv(224, 69%, 80%)
CMYK	cmyk(69.3%, 50.7%, 0%, 19.6%)
CIE-LAB	lab(45.32, 21.33, -57.94)
CIE-LCH	lch(45.32, 61.74, 290.21°)
OKLab	oklab(53.62% -0.012 -0.1664)
OKLCH	oklch(53.62% 0.167 265.9)
XYZ	xyz(17.7192, 14.7701, 59.6629)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65CD #CDA73F

analogous

#3FACCD #3F65CD #603FCD

triadic

#3F65CD #CD3F65 #65CD3F

tetradic

#3F65CD #CD3FAC #CDA73F #3FCD60

square

#3F65CD #CD3FAC #CDA73F #3FCD60

split-complementary

#3F65CD #CD603F #ACCD3F

monochromatic

#1E3574 #2B4BA4 #3F65CD #708CDA #A0B3E6

Accessibility & contrast

On white

5.31

#3F65CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3F65CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65CD

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65CD	#FFFFFF	#000000	##FFFFFF
##3F65CD	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2672D1

Deuteranopia (green-blind)

#0065CB

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f65cd;
/* rgb */ color: rgb(63, 101, 205);
/* oklch */ color: oklch(53.6% 0.167 265.9);

Tailwind

colors: {
  custom: {
    50: '#8490dd',
    500: '#3f65cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f65cd;
$custom-light: #8490dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65cd",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 205
  },
  "hsl": {
    "h": 223.944,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.53623,
    "c": 0.16684,
    "h": 265.9
  },
  "luminance": 0.14772
}

Semantic roles & 50–950 ramp

primary

#3F65CD

secondary

#D3C295

accent

#B846E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F65CD

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

Preview Lab → · Contrast checker → · Palette generator →