#3F68CF#3F68CF

#3F68CF is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.4% C 0.166 H 265.0°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F68CF
RGB	rgb(63, 104, 207)
HSL	hsl(223, 60%, 53%)
HSV	hsv(223, 70%, 81%)
CMYK	cmyk(69.6%, 49.8%, 0%, 18.8%)
CIE-LAB	lab(46.26, 20.14, -57.57)
CIE-LCH	lch(46.26, 60.99, 289.29°)
OKLab	oklab(54.38% -0.0144 -0.1653)
OKLCH	oklch(54.38% 0.166 265)
XYZ	xyz(18.2587, 15.4605, 61.0413)
Luminance	0.1546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68CF #CFA63F

analogous

#3FB0CF #3F68CF #5E3FCF

triadic

#3F68CF #CF3F68 #68CF3F

tetradic

#3F68CF #CF3FB0 #CFA63F #3FCF5E

square

#3F68CF #CF3FB0 #CFA63F #3FCF5E

split-complementary

#3F68CF #CF5E3F #B0CF3F

monochromatic

#1E3776 #2A4DA7 #3F68CF #708FDB #A1B5E7

Accessibility & contrast

On white

5.13

#3F68CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#3F68CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68CF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68CF	#FFFFFF	#000000	##FFFFFF
##3F68CF	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C75D3

Deuteranopia (green-blind)

#0067CD

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f68cf;
/* rgb */ color: rgb(63, 104, 207);
/* oklch */ color: oklch(54.4% 0.166 265.0);

Tailwind

colors: {
  custom: {
    50: '#8592de',
    500: '#3f68cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f68cf;
$custom-light: #8592de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68cf",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 207
  },
  "hsl": {
    "h": 222.917,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.54381,
    "c": 0.1659,
    "h": 265
  },
  "luminance": 0.15462
}

Semantic roles & 50–950 ramp

primary

#3F68CF

secondary

#D4C296

accent

#B645E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3F68CF

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

Preview Lab → · Contrast checker → · Palette generator →