#3F6CC5#3F6CC5

#3F6CC5 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.5% C 0.147 H 262.4°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CC5
RGB	rgb(63, 108, 197)
HSL	hsl(220, 54%, 51%)
HSV	hsv(220, 68%, 77%)
CMYK	cmyk(68%, 45.2%, 0%, 22.7%)
CIE-LAB	lab(46.73, 14.01, -51.08)
CIE-LCH	lch(46.73, 52.96, 285.33°)
OKLab	oklab(54.54% -0.0195 -0.1461)
OKLCH	oklch(54.54% 0.147 262.4)
XYZ	xyz(17.4869, 15.8114, 54.9428)
Luminance	0.1581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CC5 #C5983F

analogous

#3FAFC5 #3F6CC5 #553FC5

triadic

#3F6CC5 #C53F6C #6CC53F

tetradic

#3F6CC5 #C53FAF #C5983F #3FC555

square

#3F6CC5 #C53FAF #C5983F #3FC555

split-complementary

#3F6CC5 #C5553F #AFC53F

monochromatic

#20396A #2E5299 #3F6CC5 #6E90D3 #9DB4E1

Accessibility & contrast

On white

5.04

#3F6CC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3F6CC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CC5

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CC5	#FFFFFF	#000000	##FFFFFF
##3F6CC5	1.00	5.04	4.16	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4075C8

Deuteranopia (green-blind)

#2769C3

Tritanopia (blue-blind)

#00818F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6cc5;
/* rgb */ color: rgb(63, 108, 197);
/* oklch */ color: oklch(54.5% 0.147 262.4);

Tailwind

colors: {
  custom: {
    50: '#8395d7',
    500: '#3f6cc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cc5;
$custom-light: #8395d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cc5",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 197
  },
  "hsl": {
    "h": 219.851,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54536,
    "c": 0.1474,
    "h": 262.4
  },
  "luminance": 0.15813
}

Semantic roles & 50–950 ramp

primary

#3F6CC5

secondary

#CEBA92

accent

#AC4BDD

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6CC5

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

Preview Lab → · Contrast checker → · Palette generator →