#3F6BC0#3F6BC0

#3F6BC0 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.0% C 0.142 H 262.1°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BC0
RGB	rgb(63, 107, 192)
HSL	hsl(220, 51%, 50%)
HSV	hsv(220, 67%, 75%)
CMYK	cmyk(67.2%, 44.3%, 0%, 24.7%)
CIE-LAB	lab(46.15, 12.84, -49.12)
CIE-LCH	lch(46.15, 50.77, 284.65°)
OKLab	oklab(53.99% -0.0194 -0.1404)
OKLCH	oklch(53.99% 0.142 262.1)
XYZ	xyz(16.8187, 15.3763, 51.9405)
Luminance	0.1538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BC0 #C0943F

analogous

#3FABC0 #3F6BC0 #543FC0

triadic

#3F6BC0 #C03F6B #6BC03F

tetradic

#3F6BC0 #C03FAB #C0943F #3FC054

square

#3F6BC0 #C03FAB #C0943F #3FC054

split-complementary

#3F6BC0 #C0543F #ABC03F

monochromatic

#213864 #305192 #3F6BC0 #6D8FCF #9BB2DE

Accessibility & contrast

On white

5.15

#3F6BC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#3F6BC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BC0

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BC0	#FFFFFF	#000000	##FFFFFF
##3F6BC0	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4274C3

Deuteranopia (green-blind)

#2B68BE

Tritanopia (blue-blind)

#007F8C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f6bc0;
/* rgb */ color: rgb(63, 107, 192);
/* oklch */ color: oklch(54.0% 0.142 262.1);

Tailwind

colors: {
  custom: {
    50: '#8294d3',
    500: '#3f6bc0',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bc0;
$custom-light: #8294d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bc0",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 192
  },
  "hsl": {
    "h": 219.535,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.53992,
    "c": 0.14172,
    "h": 262.1
  },
  "luminance": 0.15378
}

Semantic roles & 50–950 ramp

primary

#3F6BC0

secondary

#CAB791

accent

#AA4EDA

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6BC0

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

Preview Lab → · Contrast checker → · Palette generator →