#3F68C1#3F68C1

#3F68C1 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.4% C 0.147 H 263.6°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F68C1
RGB	rgb(63, 104, 193)
HSL	hsl(221, 51%, 50%)
HSV	hsv(221, 67%, 76%)
CMYK	cmyk(67.4%, 46.1%, 0%, 24.3%)
CIE-LAB	lab(45.37, 15.10, -50.95)
CIE-LCH	lch(45.37, 53.14, 286.51°)
OKLab	oklab(53.41% -0.0163 -0.1458)
OKLCH	oklch(53.41% 0.147 263.6)
XYZ	xyz(16.6225, 14.8060, 52.4236)
Luminance	0.1481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68C1 #C1983F

analogous

#3FA9C1 #3F68C1 #573FC1

triadic

#3F68C1 #C13F68 #68C13F

tetradic

#3F68C1 #C13FA9 #C1983F #3FC157

square

#3F68C1 #C13FA9 #C1983F #3FC157

split-complementary

#3F68C1 #C1573F #A9C13F

monochromatic

#213665 #304F93 #3F68C1 #6D8CD0 #9CB1DF

Accessibility & contrast

On white

5.30

#3F68C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#3F68C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68C1

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68C1	#FFFFFF	#000000	##FFFFFF
##3F68C1	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B72C4

Deuteranopia (green-blind)

#2266BF

Tritanopia (blue-blind)

#007D8B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f68c1;
/* rgb */ color: rgb(63, 104, 193);
/* oklch */ color: oklch(53.4% 0.147 263.6);

Tailwind

colors: {
  custom: {
    50: '#8292d4',
    500: '#3f68c1',
    950: '#000000',
  },
}

SCSS

$custom: #3f68c1;
$custom-light: #8292d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68c1",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 193
  },
  "hsl": {
    "h": 221.077,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.53414,
    "c": 0.14671,
    "h": 263.6
  },
  "luminance": 0.14808
}

Semantic roles & 50–950 ramp

primary

#3F68C1

secondary

#CBB991

accent

#AE4DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0D14

muted

#7D7D83

Preview Lab

Preview with #3F68C1

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

Preview Lab → · Contrast checker → · Palette generator →