#3F68BE#3F68BE

#3F68BE is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.2% C 0.143 H 263.2°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F68BE
RGB	rgb(63, 104, 190)
HSL	hsl(221, 50%, 50%)
HSV	hsv(221, 67%, 75%)
CMYK	cmyk(66.8%, 45.3%, 0%, 25.5%)
CIE-LAB	lab(45.18, 14.02, -49.51)
CIE-LCH	lch(45.18, 51.45, 285.81°)
OKLab	oklab(53.21% -0.0168 -0.1416)
OKLCH	oklch(53.21% 0.143 263.2)
XYZ	xyz(16.2912, 14.6735, 50.6789)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68BE #BE953F

analogous

#3FA8BE #3F68BE #563FBE

triadic

#3F68BE #BE3F68 #68BE3F

tetradic

#3F68BE #BE3FA8 #BE953F #3FBE56

square

#3F68BE #BE3FA8 #BE953F #3FBE56

split-complementary

#3F68BE #BE563F #A8BE3F

monochromatic

#213662 #304F90 #3F68BE #6C8CCE #9AB0DD

Accessibility & contrast

On white

5.34

#3F68BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3F68BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68BE

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68BE	#FFFFFF	#000000	##FFFFFF
##3F68BE	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E71C1

Deuteranopia (green-blind)

#2765BC

Tritanopia (blue-blind)

#007C8A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f68be;
/* rgb */ color: rgb(63, 104, 190);
/* oklch */ color: oklch(53.2% 0.143 263.2);

Tailwind

colors: {
  custom: {
    50: '#8292d2',
    500: '#3f68be',
    950: '#000000',
  },
}

SCSS

$custom: #3f68be;
$custom-light: #8292d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68be",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 190
  },
  "hsl": {
    "h": 220.63,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.53214,
    "c": 0.14256,
    "h": 263.2
  },
  "luminance": 0.14675
}

Semantic roles & 50–950 ramp

primary

#3F68BE

secondary

#C9B78F

accent

#AD4EDA

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0D14

muted

#7C7D82

Preview Lab

Preview with #3F68BE

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

Preview Lab → · Contrast checker → · Palette generator →