#3F6CD7#3F6CD7

#3F6CD7 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.8% C 0.172 H 264.4°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CD7
RGB	rgb(63, 108, 215)
HSL	hsl(222, 66%, 55%)
HSV	hsv(222, 71%, 84%)
CMYK	cmyk(70.7%, 49.8%, 0%, 15.7%)
CIE-LAB	lab(47.86, 20.50, -59.55)
CIE-LCH	lch(47.86, 62.98, 289.00°)
OKLab	oklab(55.77% -0.0169 -0.171)
OKLCH	oklch(55.77% 0.172 264.4)
XYZ	xyz(19.6739, 16.6861, 66.4607)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CD7 #D7AA3F

analogous

#3FB8D7 #3F6CD7 #5E3FD7

triadic

#3F6CD7 #D73F6C #6CD73F

tetradic

#3F6CD7 #D73FB8 #D7AA3F #3FD75E

square

#3F6CD7 #D73FB8 #D7AA3F #3FD75E

split-complementary

#3F6CD7 #D75E3F #B8D73F

monochromatic

#1B3981 #254FB3 #3F6CD7 #7293E2 #A4BAEC

Accessibility & contrast

On white

4.84

#3F6CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#3F6CD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CD7

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CD7	#FFFFFF	#000000	##FFFFFF
##3F6CD7	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D79DB

Deuteranopia (green-blind)

#006BD5

Tritanopia (blue-blind)

#008597

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f6cd7;
/* rgb */ color: rgb(63, 108, 215);
/* oklch */ color: oklch(55.8% 0.172 264.4);

Tailwind

colors: {
  custom: {
    50: '#8695e4',
    500: '#3f6cd7',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cd7;
$custom-light: #8695e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cd7",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 215
  },
  "hsl": {
    "h": 222.237,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5577,
    "c": 0.17186,
    "h": 264.4
  },
  "luminance": 0.16688
}

Semantic roles & 50–950 ramp

primary

#3F6CD7

secondary

#D9C699

accent

#B63FE8

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0D0D16

muted

#7D7E84

Preview Lab

Preview with #3F6CD7

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

Preview Lab → · Contrast checker → · Palette generator →