#3F6CD4#3F6CD4

#3F6CD4 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.6% C 0.168 H 264.1°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F6CD4
RGB	rgb(63, 108, 212)
HSL	hsl(222, 63%, 54%)
HSV	hsv(222, 70%, 83%)
CMYK	cmyk(70.3%, 49.1%, 0%, 16.9%)
CIE-LAB	lab(47.67, 19.42, -58.16)
CIE-LCH	lch(47.67, 61.31, 288.46°)
OKLab	oklab(55.56% -0.0173 -0.1669)
OKLCH	oklch(55.56% 0.168 264.1)
XYZ	xyz(19.2919, 16.5334, 64.4491)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6CD4 #D4A73F

analogous

#3FB7D4 #3F6CD4 #5D3FD4

triadic

#3F6CD4 #D43F6C #6CD43F

tetradic

#3F6CD4 #D43FB7 #D4A73F #3FD45D

square

#3F6CD4 #D43FB7 #D4A73F #3FD45D

split-complementary

#3F6CD4 #D45D3F #B7D43F

monochromatic

#1C397D #2750AF #3F6CD4 #7192DF #A3B9EA

Accessibility & contrast

On white

4.88

#3F6CD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3F6CD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6CD4

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6CD4	#FFFFFF	#000000	##FFFFFF
##3F6CD4	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3178D8

Deuteranopia (green-blind)

#006BD2

Tritanopia (blue-blind)

#008596

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6cd4;
/* rgb */ color: rgb(63, 108, 212);
/* oklch */ color: oklch(55.6% 0.168 264.1);

Tailwind

colors: {
  custom: {
    50: '#8695e2',
    500: '#3f6cd4',
    950: '#000000',
  },
}

SCSS

$custom: #3f6cd4;
$custom-light: #8695e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6cd4",
  "rgb": {
    "r": 63,
    "g": 108,
    "b": 212
  },
  "hsl": {
    "h": 221.879,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55559,
    "c": 0.16782,
    "h": 264.1
  },
  "luminance": 0.16535
}

Semantic roles & 50–950 ramp

primary

#3F6CD4

secondary

#D7C498

accent

#B541E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6CD4

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

Preview Lab → · Contrast checker → · Palette generator →