#3F6DCA#3F6DCA

#3F6DCA is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.1% C 0.153 H 262.7°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DCA
RGB	rgb(63, 109, 202)
HSL	hsl(220, 57%, 52%)
HSV	hsv(220, 69%, 79%)
CMYK	cmyk(68.8%, 46%, 0%, 20.8%)
CIE-LAB	lab(47.31, 15.18, -53.01)
CIE-LCH	lch(47.31, 55.14, 285.98°)
OKLab	oklab(55.08% -0.0196 -0.1518)
OKLCH	oklch(55.08% 0.153 262.7)
XYZ	xyz(18.1754, 16.2565, 58.0456)
Luminance	0.1626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DCA #CA9C3F

analogous

#3FB3CA #3F6DCA #573FCA

triadic

#3F6DCA #CA3F6D #6DCA3F

tetradic

#3F6DCA #CA3FB3 #CA9C3F #3FCA57

square

#3F6DCA #CA3FB3 #CA9C3F #3FCA57

split-complementary

#3F6DCA #CA573F #B3CA3F

monochromatic

#1F3A70 #2C52A0 #3F6DCA #6F91D7 #9FB6E4

Accessibility & contrast

On white

4.94

#3F6DCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3F6DCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DCA

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DCA	#FFFFFF	#000000	##FFFFFF
##3F6DCA	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E77CD

Deuteranopia (green-blind)

#216AC8

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6dca;
/* rgb */ color: rgb(63, 109, 202);
/* oklch */ color: oklch(55.1% 0.153 262.7);

Tailwind

colors: {
  custom: {
    50: '#8496db',
    500: '#3f6dca',
    950: '#000000',
  },
}

SCSS

$custom: #3f6dca;
$custom-light: #8496db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6dca",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 202
  },
  "hsl": {
    "h": 220.144,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.55083,
    "c": 0.15305,
    "h": 262.7
  },
  "luminance": 0.16258
}

Semantic roles & 50–950 ramp

primary

#3F6DCA

secondary

#D1BD94

accent

#AE48E0

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F6DCA

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

Preview Lab → · Contrast checker → · Palette generator →