#3F6CC7#3F6CC7

#3F6CC7 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.7% C 0.150 H 262.7°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CC7
RGB	rgb(63, 108, 199)
HSL	hsl(220, 55%, 51%)
HSV	hsv(220, 68%, 78%)
CMYK	cmyk(68.3%, 45.7%, 0%, 22%)
CIE-LAB	lab(46.85, 14.73, -52.03)
CIE-LCH	lch(46.85, 54.08, 285.80°)
OKLab	oklab(54.67% -0.0191 -0.1489)
OKLCH	oklch(54.67% 0.15 262.7)
XYZ	xyz(17.7176, 15.9036, 56.1577)
Luminance	0.1590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CC7 #C79A3F

analogous

#3FB0C7 #3F6CC7 #563FC7

triadic

#3F6CC7 #C73F6C #6CC73F

tetradic

#3F6CC7 #C73FB0 #C79A3F #3FC756

square

#3F6CC7 #C73FB0 #C79A3F #3FC756

split-complementary

#3F6CC7 #C7563F #B0C73F

monochromatic

#20396C #2D529B #3F6CC7 #6E90D5 #9EB5E3

Accessibility & contrast

On white

5.02

#3F6CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#3F6CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CC7

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CC7	#FFFFFF	#000000	##FFFFFF
##3F6CC7	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E76CA

Deuteranopia (green-blind)

#2369C5

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6cc7;
/* rgb */ color: rgb(63, 108, 199);
/* oklch */ color: oklch(54.7% 0.150 262.7);

Tailwind

colors: {
  custom: {
    50: '#8395d8',
    500: '#3f6cc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cc7;
$custom-light: #8395d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cc7",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 199
  },
  "hsl": {
    "h": 220.147,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54669,
    "c": 0.15014,
    "h": 262.7
  },
  "luminance": 0.15905
}

Semantic roles & 50–950 ramp

primary

#3F6CC7

secondary

#CFBB93

accent

#AD4ADE

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6CC7

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

Preview Lab → · Contrast checker → · Palette generator →