#3F6ECD#3F6ECD

#3F6ECD is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.5% C 0.156 H 262.6°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F6ECD
RGB	rgb(63, 110, 205)
HSL	hsl(220, 59%, 53%)
HSV	hsv(220, 69%, 80%)
CMYK	cmyk(69.3%, 46.3%, 0%, 19.6%)
CIE-LAB	lab(47.77, 15.63, -53.99)
CIE-LCH	lch(47.77, 56.21, 286.14°)
OKLab	oklab(55.5% -0.02 -0.1546)
OKLCH	oklch(55.5% 0.156 262.6)
XYZ	xyz(18.6414, 16.6145, 59.9703)
Luminance	0.1662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6ECD #CD9E3F

analogous

#3FB5CD #3F6ECD #573FCD

triadic

#3F6ECD #CD3F6E #6ECD3F

tetradic

#3F6ECD #CD3FB5 #CD9E3F #3FCD57

square

#3F6ECD #CD3FB5 #CD9E3F #3FCD57

split-complementary

#3F6ECD #CD573F #B5CD3F

monochromatic

#1E3A74 #2B53A4 #3F6ECD #7093DA #A0B7E6

Accessibility & contrast

On white

4.86

#3F6ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3F6ECD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6ECD

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6ECD	#FFFFFF	#000000	##FFFFFF
##3F6ECD	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D78D1

Deuteranopia (green-blind)

#1E6BCB

Tritanopia (blue-blind)

#008493

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f6ecd;
/* rgb */ color: rgb(63, 110, 205);
/* oklch */ color: oklch(55.5% 0.156 262.6);

Tailwind

colors: {
  custom: {
    50: '#8497dd',
    500: '#3f6ecd',
    950: '#000000',
  },
}

SCSS

$custom: #3f6ecd;
$custom-light: #8497dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6ecd",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 205
  },
  "hsl": {
    "h": 220.141,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.55496,
    "c": 0.15594,
    "h": 262.6
  },
  "luminance": 0.16616
}

Semantic roles & 50–950 ramp

primary

#3F6ECD

secondary

#D3BE95

accent

#AE46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6ECD

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

Preview Lab → · Contrast checker → · Palette generator →