#3F6BC5#3F6BC5

#3F6BC5 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.3% C 0.149 H 262.8°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BC5
RGB	rgb(63, 107, 197)
HSL	hsl(220, 54%, 51%)
HSV	hsv(220, 68%, 77%)
CMYK	cmyk(68%, 45.7%, 0%, 22.7%)
CIE-LAB	lab(46.45, 14.64, -51.52)
CIE-LCH	lch(46.45, 53.56, 285.86°)
OKLab	oklab(54.32% -0.0185 -0.1474)
OKLCH	oklch(54.32% 0.149 262.8)
XYZ	xyz(17.3821, 15.6016, 54.9079)
Luminance	0.1560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BC5 #C5993F

analogous

#3FAEC5 #3F6BC5 #563FC5

triadic

#3F6BC5 #C53F6B #6BC53F

tetradic

#3F6BC5 #C53FAE #C5993F #3FC556

square

#3F6BC5 #C53FAE #C5993F #3FC556

split-complementary

#3F6BC5 #C5563F #AEC53F

monochromatic

#20386A #2E5199 #3F6BC5 #6E8FD3 #9DB3E1

Accessibility & contrast

On white

5.10

#3F6BC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#3F6BC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BC5

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BC5	#FFFFFF	#000000	##FFFFFF
##3F6BC5	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E75C8

Deuteranopia (green-blind)

#2468C3

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f6bc5;
/* rgb */ color: rgb(63, 107, 197);
/* oklch */ color: oklch(54.3% 0.149 262.8);

Tailwind

colors: {
  custom: {
    50: '#8394d7',
    500: '#3f6bc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bc5;
$custom-light: #8394d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bc5",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 197
  },
  "hsl": {
    "h": 220.299,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54322,
    "c": 0.1486,
    "h": 262.8
  },
  "luminance": 0.15603
}

Semantic roles & 50–950 ramp

primary

#3F6BC5

secondary

#CEBA92

accent

#AD4BDD

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6BC5

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

Preview Lab → · Contrast checker → · Palette generator →