#3F6CC1#3F6CC1

#3F6CC1 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.3% C 0.142 H 261.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CC1
RGB	rgb(63, 108, 193)
HSL	hsl(219, 51%, 50%)
HSV	hsv(219, 67%, 76%)
CMYK	cmyk(67.4%, 44%, 0%, 24.3%)
CIE-LAB	lab(46.49, 12.57, -49.16)
CIE-LCH	lch(46.49, 50.74, 284.34°)
OKLab	oklab(54.27% -0.0202 -0.1405)
OKLCH	oklch(54.27% 0.142 261.8)
XYZ	xyz(17.0347, 15.6305, 52.5610)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CC1 #C1943F

analogous

#3FADC1 #3F6CC1 #533FC1

triadic

#3F6CC1 #C13F6C #6CC13F

tetradic

#3F6CC1 #C13FAD #C1943F #3FC153

square

#3F6CC1 #C13FAD #C1943F #3FC153

split-complementary

#3F6CC1 #C1533F #ADC13F

monochromatic

#213865 #305293 #3F6CC1 #6D8FD0 #9CB3DF

Accessibility & contrast

On white

5.09

#3F6CC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#3F6CC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CC1

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CC1	#FFFFFF	#000000	##FFFFFF
##3F6CC1	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4375C4

Deuteranopia (green-blind)

#2D69BF

Tritanopia (blue-blind)

#00808D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6cc1;
/* rgb */ color: rgb(63, 108, 193);
/* oklch */ color: oklch(54.3% 0.142 261.8);

Tailwind

colors: {
  custom: {
    50: '#8295d4',
    500: '#3f6cc1',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cc1;
$custom-light: #8295d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cc1",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 193
  },
  "hsl": {
    "h": 219.231,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.54274,
    "c": 0.14191,
    "h": 261.8
  },
  "luminance": 0.15632
}

Semantic roles & 50–950 ramp

primary

#3F6CC1

secondary

#CBB791

accent

#AA4DDB

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6CC1

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

Preview Lab → · Contrast checker → · Palette generator →