#3F6ACD#3F6ACD

#3F6ACD is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.7% C 0.161 H 264.1°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F6ACD
RGB	rgb(63, 106, 205)
HSL	hsl(222, 59%, 53%)
HSV	hsv(222, 69%, 80%)
CMYK	cmyk(69.3%, 48.3%, 0%, 19.6%)
CIE-LAB	lab(46.67, 18.15, -55.76)
CIE-LCH	lch(46.67, 58.64, 288.04°)
OKLab	oklab(54.66% -0.0164 -0.1599)
OKLCH	oklch(54.66% 0.161 264.1)
XYZ	xyz(18.2195, 15.7708, 59.8296)
Luminance	0.1577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6ACD #CDA23F

analogous

#3FB1CD #3F6ACD #5B3FCD

triadic

#3F6ACD #CD3F6A #6ACD3F

tetradic

#3F6ACD #CD3FB1 #CDA23F #3FCD5B

square

#3F6ACD #CD3FB1 #CDA23F #3FCD5B

split-complementary

#3F6ACD #CD5B3F #B1CD3F

monochromatic

#1E3874 #2B4FA4 #3F6ACD #7090DA #A0B5E6

Accessibility & contrast

On white

5.05

#3F6ACD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3F6ACD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6ACD

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6ACD	#FFFFFF	#000000	##FFFFFF
##3F6ACD	1.00	5.05	4.15	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3476D1

Deuteranopia (green-blind)

#0A68CB

Tritanopia (blue-blind)

#008192

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6acd;
/* rgb */ color: rgb(63, 106, 205);
/* oklch */ color: oklch(54.7% 0.161 264.1);

Tailwind

colors: {
  custom: {
    50: '#8494dd',
    500: '#3f6acd',
    950: '#000000',
  },
}

SCSS

$custom: #3f6acd;
$custom-light: #8494dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6acd",
  "rgb": {
    "r": 63,
    "g": 106,
    "b": 205
  },
  "hsl": {
    "h": 221.831,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.54655,
    "c": 0.16075,
    "h": 264.1
  },
  "luminance": 0.15773
}

Semantic roles & 50–950 ramp

primary

#3F6ACD

secondary

#D3C095

accent

#B346E2

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6ACD

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

Preview Lab → · Contrast checker → · Palette generator →