#3F6BD6#3F6BD6

#3F6BD6 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.5% C 0.172 H 264.6°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BD6
RGB	rgb(63, 107, 214)
HSL	hsl(223, 65%, 54%)
HSV	hsv(223, 71%, 84%)
CMYK	cmyk(70.6%, 50%, 0%, 16.1%)
CIE-LAB	lab(47.53, 20.77, -59.52)
CIE-LCH	lch(47.53, 63.04, 289.24°)
OKLab	oklab(55.5% -0.0162 -0.171)
OKLCH	oklch(55.5% 0.172 264.6)
XYZ	xyz(19.4409, 16.4252, 65.7511)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BD6 #D6AA3F

analogous

#3FB6D6 #3F6BD6 #5F3FD6

triadic

#3F6BD6 #D63F6B #6BD63F

tetradic

#3F6BD6 #D63FB6 #D6AA3F #3FD65F

square

#3F6BD6 #D63FB6 #D6AA3F #3FD65F

split-complementary

#3F6BD6 #D65F3F #B6D63F

monochromatic

#1B387F #264FB2 #3F6BD6 #7192E1 #A4B9EC

Accessibility & contrast

On white

4.90

#3F6BD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3F6BD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BD6

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BD6	#FFFFFF	#000000	##FFFFFF
##3F6BD6	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B78DA

Deuteranopia (green-blind)

#006AD4

Tritanopia (blue-blind)

#008496

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6bd6;
/* rgb */ color: rgb(63, 107, 214);
/* oklch */ color: oklch(55.5% 0.172 264.6);

Tailwind

colors: {
  custom: {
    50: '#8694e3',
    500: '#3f6bd6',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bd6;
$custom-light: #8694e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bd6",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 214
  },
  "hsl": {
    "h": 222.517,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.55495,
    "c": 0.17172,
    "h": 264.6
  },
  "luminance": 0.16427
}

Semantic roles & 50–950 ramp

primary

#3F6BD6

secondary

#D8C698

accent

#B740E8

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0D0D15

muted

#7D7E84

Preview Lab

Preview with #3F6BD6

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

Preview Lab → · Contrast checker → · Palette generator →