#3F6AD7#3F6AD7

#3F6AD7 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.4% C 0.174 H 265.0°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F6AD7
RGB	rgb(63, 106, 215)
HSL	hsl(223, 66%, 55%)
HSV	hsv(223, 71%, 84%)
CMYK	cmyk(70.7%, 50.7%, 0%, 15.7%)
CIE-LAB	lab(47.33, 21.77, -60.41)
CIE-LCH	lch(47.33, 64.21, 289.81°)
OKLab	oklab(55.36% -0.0152 -0.1736)
OKLCH	oklch(55.36% 0.174 265)
XYZ	xyz(19.4654, 16.2691, 66.3912)
Luminance	0.1627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6AD7 #D7AC3F

analogous

#3FB6D7 #3F6AD7 #603FD7

triadic

#3F6AD7 #D73F6A #6AD73F

tetradic

#3F6AD7 #D73FB6 #D7AC3F #3FD760

square

#3F6AD7 #D73FB6 #D7AC3F #3FD760

split-complementary

#3F6AD7 #D7603F #B6D73F

monochromatic

#1B3881 #254EB3 #3F6AD7 #7291E2 #A4B9EC

Accessibility & contrast

On white

4.94

#3F6AD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3F6AD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6AD7

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6AD7	#FFFFFF	#000000	##FFFFFF
##3F6AD7	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2778DB

Deuteranopia (green-blind)

#006AD5

Tritanopia (blue-blind)

#008496

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6ad7;
/* rgb */ color: rgb(63, 106, 215);
/* oklch */ color: oklch(55.4% 0.174 265.0);

Tailwind

colors: {
  custom: {
    50: '#8694e4',
    500: '#3f6ad7',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ad7;
$custom-light: #8694e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ad7",
  "rgb": {
    "r": 63,
    "g": 106,
    "b": 215
  },
  "hsl": {
    "h": 223.026,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.55362,
    "c": 0.17428,
    "h": 265
  },
  "luminance": 0.16271
}

Semantic roles & 50–950 ramp

primary

#3F6AD7

secondary

#D9C799

accent

#B93FE8

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0D0D16

muted

#7D7E84

Preview Lab

Preview with #3F6AD7

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

Preview Lab → · Contrast checker → · Palette generator →