#3F6FCD#3F6FCD

#3F6FCD is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.7% C 0.155 H 262.2°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F6FCD
RGB	rgb(63, 111, 205)
HSL	hsl(220, 59%, 53%)
HSV	hsv(220, 69%, 80%)
CMYK	cmyk(69.3%, 45.9%, 0%, 19.6%)
CIE-LAB	lab(48.05, 15.00, -53.55)
CIE-LCH	lch(48.05, 55.61, 285.65°)
OKLab	oklab(55.71% -0.0209 -0.1533)
OKLCH	oklch(55.71% 0.155 262.2)
XYZ	xyz(18.7499, 16.8315, 60.0064)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6FCD #CD9D3F

analogous

#3FB6CD #3F6FCD #563FCD

triadic

#3F6FCD #CD3F6F #6FCD3F

tetradic

#3F6FCD #CD3FB6 #CD9D3F #3FCD56

square

#3F6FCD #CD3FB6 #CD9D3F #3FCD56

split-complementary

#3F6FCD #CD563F #B6CD3F

monochromatic

#1E3B74 #2B54A4 #3F6FCD #7093DA #A0B8E6

Accessibility & contrast

On white

4.81

#3F6FCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3F6FCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FCD

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6FCD	#FFFFFF	#000000	##FFFFFF
##3F6FCD	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F79D1

Deuteranopia (green-blind)

#226CCB

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f6fcd;
/* rgb */ color: rgb(63, 111, 205);
/* oklch */ color: oklch(55.7% 0.155 262.2);

Tailwind

colors: {
  custom: {
    50: '#8497dd',
    500: '#3f6fcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f6fcd;
$custom-light: #8497dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6fcd",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 205
  },
  "hsl": {
    "h": 219.718,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.55709,
    "c": 0.15475,
    "h": 262.2
  },
  "luminance": 0.16833
}

Semantic roles & 50–950 ramp

primary

#3F6FCD

secondary

#D3BE95

accent

#AD46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6FCD

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

Preview Lab → · Contrast checker → · Palette generator →