#3F6ADA#3F6ADA

#3F6ADA is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.6% C 0.178 H 265.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F6ADA
RGB	rgb(63, 106, 218)
HSL	hsl(223, 68%, 55%)
HSV	hsv(223, 71%, 85%)
CMYK	cmyk(71.1%, 51.4%, 0%, 14.5%)
CIE-LAB	lab(47.53, 22.85, -61.79)
CIE-LCH	lch(47.53, 65.88, 290.29°)
OKLab	oklab(55.58% -0.0149 -0.1777)
OKLCH	oklch(55.58% 0.178 265.2)
XYZ	xyz(19.8544, 16.4247, 68.4400)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6ADA #DAAF3F

analogous

#3FB7DA #3F6ADA #623FDA

triadic

#3F6ADA #DA3F6A #6ADA3F

tetradic

#3F6ADA #DA3FB7 #DAAF3F #3FDA62

square

#3F6ADA #DA3FB7 #DAAF3F #3FDA62

split-complementary

#3F6ADA #DA623F #B7DA3F

monochromatic

#1A3785 #244DB8 #3F6ADA #7292E4 #A6BAEE

Accessibility & contrast

On white

4.90

#3F6ADA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3F6ADA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6ADA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6ADA	#FFFFFF	#000000	##FFFFFF
##3F6ADA	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)

#2278DE

Deuteranopia (green-blind)

#006AD8

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6ada;
/* rgb */ color: rgb(63, 106, 218);
/* oklch */ color: oklch(55.6% 0.178 265.2);

Tailwind

colors: {
  custom: {
    50: '#8794e6',
    500: '#3f6ada',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ada;
$custom-light: #8794e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ada",
  "rgb": {
    "r": 63,
    "g": 106,
    "b": 218
  },
  "hsl": {
    "h": 223.355,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.55579,
    "c": 0.17829,
    "h": 265.2
  },
  "luminance": 0.16427
}

Semantic roles & 50–950 ramp

primary

#3F6ADA

secondary

#DBC99A

accent

#BA3DEB

background

#F9F9FE

surface

#F1F1FC

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3F6ADA

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

Preview Lab → · Contrast checker → · Palette generator →