#3F72DA#3F72DA

#3F72DA is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.2% C 0.169 H 262.6°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3F72DA
RGB	rgb(63, 114, 218)
HSL	hsl(220, 68%, 55%)
HSV	hsv(220, 71%, 85%)
CMYK	cmyk(71.1%, 47.7%, 0%, 14.5%)
CIE-LAB	lab(49.68, 17.81, -58.32)
CIE-LCH	lch(49.68, 60.98, 286.98°)
OKLab	oklab(57.22% -0.0216 -0.1673)
OKLCH	oklch(57.22% 0.169 262.6)
XYZ	xyz(20.7176, 18.1512, 68.7277)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F72DA #DAA73F

analogous

#3FC0DA #3F72DA #593FDA

triadic

#3F72DA #DA3F72 #72DA3F

tetradic

#3F72DA #DA3FC0 #DAA73F #3FDA59

square

#3F72DA #DA3FC0 #DAA73F #3FDA59

split-complementary

#3F72DA #DA593F #C0DA3F

monochromatic

#1A3D85 #2454B8 #3F72DA #7298E4 #A6BDEE

Accessibility & contrast

On white

4.54

#3F72DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3F72DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F72DA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F72DA	#FFFFFF	#000000	##000000
##3F72DA	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397EDE

Deuteranopia (green-blind)

#0B6FD8

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f72da;
/* rgb */ color: rgb(63, 114, 218);
/* oklch */ color: oklch(57.2% 0.169 262.6);

Tailwind

colors: {
  custom: {
    50: '#8799e6',
    500: '#3f72da',
    950: '#000000',
  },
}

SCSS

$custom: #3f72da;
$custom-light: #8799e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f72da",
  "rgb": {
    "r": 63,
    "g": 114,
    "b": 218
  },
  "hsl": {
    "h": 220.258,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.5722,
    "c": 0.16872,
    "h": 262.6
  },
  "luminance": 0.18153
}

Semantic roles & 50–950 ramp

primary

#3F72DA

secondary

#DBC69A

accent

#B23DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3F72DA

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

Preview Lab → · Contrast checker → · Palette generator →