#3F68D1#3F68D1

#3F68D1 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.5% C 0.169 H 265.2°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F68D1
RGB	rgb(63, 104, 209)
HSL	hsl(223, 61%, 53%)
HSV	hsv(223, 70%, 82%)
CMYK	cmyk(69.9%, 50.2%, 0%, 18%)
CIE-LAB	lab(46.39, 20.87, -58.50)
CIE-LCH	lch(46.39, 62.11, 289.63°)
OKLab	oklab(54.52% -0.0142 -0.168)
OKLCH	oklch(54.52% 0.169 265.2)
XYZ	xyz(18.5048, 15.5589, 62.3372)
Luminance	0.1556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68D1 #D1A83F

analogous

#3FB1D1 #3F68D1 #5F3FD1

triadic

#3F68D1 #D13F68 #68D13F

tetradic

#3F68D1 #D13FB1 #D1A83F #3FD15F

square

#3F68D1 #D13FB1 #D1A83F #3FD15F

split-complementary

#3F68D1 #D15F3F #B1D13F

monochromatic

#1D3779 #294DAA #3F68D1 #708FDD #A2B6E9

Accessibility & contrast

On white

5.11

#3F68D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3F68D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68D1

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68D1	#FFFFFF	#000000	##FFFFFF
##3F68D1	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)

#2975D5

Deuteranopia (green-blind)

#0068CF

Tritanopia (blue-blind)

#008193

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f68d1;
/* rgb */ color: rgb(63, 104, 209);
/* oklch */ color: oklch(54.5% 0.169 265.2);

Tailwind

colors: {
  custom: {
    50: '#8592e0',
    500: '#3f68d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f68d1;
$custom-light: #8592e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68d1",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 209
  },
  "hsl": {
    "h": 223.151,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.54524,
    "c": 0.16862,
    "h": 265.2
  },
  "luminance": 0.15561
}

Semantic roles & 50–950 ramp

primary

#3F68D1

secondary

#D5C497

accent

#B743E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3F68D1

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

Preview Lab → · Contrast checker → · Palette generator →