#3F6BC3#3F6BC3

#3F6BC3 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.2% C 0.146 H 262.6°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BC3
RGB	rgb(63, 107, 195)
HSL	hsl(220, 52%, 51%)
HSV	hsv(220, 68%, 76%)
CMYK	cmyk(67.7%, 45.1%, 0%, 23.5%)
CIE-LAB	lab(46.33, 13.92, -50.57)
CIE-LCH	lch(46.33, 52.45, 285.39°)
OKLab	oklab(54.19% -0.0189 -0.1446)
OKLCH	oklch(54.19% 0.146 262.6)
XYZ	xyz(17.1544, 15.5106, 53.7090)
Luminance	0.1551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BC3 #C3973F

analogous

#3FADC3 #3F6BC3 #553FC3

triadic

#3F6BC3 #C33F6B #6BC33F

tetradic

#3F6BC3 #C33FAD #C3973F #3FC355

square

#3F6BC3 #C33FAD #C3973F #3FC355

split-complementary

#3F6BC3 #C3553F #ADC33F

monochromatic

#203867 #2F5196 #3F6BC3 #6E8FD2 #9CB3E0

Accessibility & contrast

On white

5.12

#3F6BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3F6BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BC3

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BC3	#FFFFFF	#000000	##FFFFFF
##3F6BC3	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4074C6

Deuteranopia (green-blind)

#2768C1

Tritanopia (blue-blind)

#007F8D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6bc3;
/* rgb */ color: rgb(63, 107, 195);
/* oklch */ color: oklch(54.2% 0.146 262.6);

Tailwind

colors: {
  custom: {
    50: '#8294d6',
    500: '#3f6bc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bc3;
$custom-light: #8294d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bc3",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 195
  },
  "hsl": {
    "h": 220,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.54189,
    "c": 0.14585,
    "h": 262.6
  },
  "luminance": 0.15512
}

Semantic roles & 50–950 ramp

primary

#3F6BC3

secondary

#CCB992

accent

#AC4CDC

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6BC3

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

Preview Lab → · Contrast checker → · Palette generator →