#3F65DC#3F65DC

#3F65DC is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.7% C 0.187 H 266.7°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F65DC
RGB	rgb(63, 101, 220)
HSL	hsl(225, 69%, 55%)
HSV	hsv(225, 71%, 86%)
CMYK	cmyk(71.4%, 54.1%, 0%, 13.7%)
CIE-LAB	lab(46.35, 26.73, -64.83)
CIE-LCH	lch(46.35, 70.13, 292.41°)
OKLab	oklab(54.73% -0.0107 -0.1867)
OKLCH	oklch(54.73% 0.187 266.7)
XYZ	xyz(19.6173, 15.5294, 69.6599)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65DC #DCB63F

analogous

#3FB3DC #3F65DC #683FDC

triadic

#3F65DC #DC3F65 #65DC3F

tetradic

#3F65DC #DC3FB3 #DCB63F #3FDC68

square

#3F65DC #DC3FB3 #DCB63F #3FDC68

split-complementary

#3F65DC #DC683F #B3DC3F

monochromatic

#193488 #2247BC #3F65DC #738FE5 #A7B8EF

Accessibility & contrast

On white

5.11

#3F65DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3F65DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65DC

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65DC	#FFFFFF	#000000	##FFFFFF
##3F65DC	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E0

Deuteranopia (green-blind)

#0067DA

Tritanopia (blue-blind)

#008297

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f65dc;
/* rgb */ color: rgb(63, 101, 220);
/* oklch */ color: oklch(54.7% 0.187 266.7);

Tailwind

colors: {
  custom: {
    50: '#8890e8',
    500: '#3f65dc',
    950: '#000000',
  },
}

SCSS

$custom: #3f65dc;
$custom-light: #8890e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65dc",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 220
  },
  "hsl": {
    "h": 225.478,
    "s": 69.163,
    "l": 55.49
  },
  "oklch": {
    "l": 0.54733,
    "c": 0.187,
    "h": 266.7
  },
  "luminance": 0.15531
}

Semantic roles & 50–950 ramp

primary

#3F65DC

secondary

#DCCC9B

accent

#C13CEC

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3F65DC

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

Preview Lab → · Contrast checker → · Palette generator →