#3F6EC4#3F6EC4

#3F6EC4 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.9% C 0.144 H 261.4°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F6EC4
RGB	rgb(63, 110, 196)
HSL	hsl(219, 53%, 51%)
HSV	hsv(219, 68%, 77%)
CMYK	cmyk(67.9%, 43.9%, 0%, 23.1%)
CIE-LAB	lab(47.23, 12.39, -49.70)
CIE-LCH	lch(47.23, 51.22, 284.00°)
OKLab	oklab(54.9% -0.0215 -0.142)
OKLCH	oklch(54.9% 0.144 261.4)
XYZ	xyz(17.5861, 16.1924, 54.4125)
Luminance	0.1619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6EC4 #C4953F

analogous

#3FB0C4 #3F6EC4 #523FC4

triadic

#3F6EC4 #C43F6E #6EC43F

tetradic

#3F6EC4 #C43FB0 #C4953F #3FC452

square

#3F6EC4 #C43FB0 #C4953F #3FC452

split-complementary

#3F6EC4 #C4523F #B0C43F

monochromatic

#203A68 #2E5497 #3F6EC4 #6E91D2 #9DB5E1

Accessibility & contrast

On white

4.95

#3F6EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3F6EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6EC4

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6EC4	#FFFFFF	#000000	##FFFFFF
##3F6EC4	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4477C7

Deuteranopia (green-blind)

#2D6AC2

Tritanopia (blue-blind)

#00828F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6ec4;
/* rgb */ color: rgb(63, 110, 196);
/* oklch */ color: oklch(54.9% 0.144 261.4);

Tailwind

colors: {
  custom: {
    50: '#8297d6',
    500: '#3f6ec4',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ec4;
$custom-light: #8297d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ec4",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 196
  },
  "hsl": {
    "h": 218.797,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.54902,
    "c": 0.14366,
    "h": 261.4
  },
  "luminance": 0.16194
}

Semantic roles & 50–950 ramp

primary

#3F6EC4

secondary

#CDB892

accent

#A94BDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6EC4

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

Preview Lab → · Contrast checker → · Palette generator →