#3F6CC3#3F6CC3

#3F6CC3 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.4% C 0.145 H 262.1°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CC3
RGB	rgb(63, 108, 195)
HSL	hsl(220, 52%, 51%)
HSV	hsv(220, 68%, 76%)
CMYK	cmyk(67.7%, 44.6%, 0%, 23.5%)
CIE-LAB	lab(46.61, 13.29, -50.12)
CIE-LCH	lch(46.61, 51.85, 284.85°)
OKLab	oklab(54.41% -0.0198 -0.1433)
OKLCH	oklch(54.41% 0.145 262.1)
XYZ	xyz(17.2593, 15.7203, 53.7439)
Luminance	0.1572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CC3 #C3963F

analogous

#3FAEC3 #3F6CC3 #543FC3

triadic

#3F6CC3 #C33F6C #6CC33F

tetradic

#3F6CC3 #C33FAE #C3963F #3FC354

square

#3F6CC3 #C33FAE #C3963F #3FC354

split-complementary

#3F6CC3 #C3543F #AEC33F

monochromatic

#203967 #2F5296 #3F6CC3 #6E90D2 #9CB3E0

Accessibility & contrast

On white

5.07

#3F6CC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#3F6CC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CC3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CC3	#FFFFFF	#000000	##FFFFFF
##3F6CC3	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4175C6

Deuteranopia (green-blind)

#2A69C1

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6cc3;
/* rgb */ color: rgb(63, 108, 195);
/* oklch */ color: oklch(54.4% 0.145 262.1);

Tailwind

colors: {
  custom: {
    50: '#8295d6',
    500: '#3f6cc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cc3;
$custom-light: #8295d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cc3",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 195
  },
  "hsl": {
    "h": 219.545,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.54405,
    "c": 0.14466,
    "h": 262.1
  },
  "luminance": 0.15722
}

Semantic roles & 50–950 ramp

primary

#3F6CC3

secondary

#CCB892

accent

#AB4CDC

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6CC3

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

Preview Lab → · Contrast checker → · Palette generator →