#3F60BB#3F60BB

#3F60BB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.3% C 0.148 H 266.3°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F60BB
RGB	rgb(63, 96, 187)
HSL	hsl(224, 50%, 49%)
HSV	hsv(224, 66%, 73%)
CMYK	cmyk(66.3%, 48.7%, 0%, 26.7%)
CIE-LAB	lab(42.78, 18.05, -51.63)
CIE-LCH	lch(42.78, 54.69, 289.27°)
OKLab	oklab(51.31% -0.0096 -0.1479)
OKLCH	oklch(51.31% 0.148 266.3)
XYZ	xyz(15.1993, 13.0089, 48.7140)
Luminance	0.1301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F60BB #BB9A3F

analogous

#3F9EBB #3F60BB #5C3FBB

triadic

#3F60BB #BB3F60 #60BB3F

tetradic

#3F60BB #BB3F9E #BB9A3F #3FBB5C

square

#3F60BB #BB3F9E #BB9A3F #3FBB5C

split-complementary

#3F60BB #BB5C3F #9EBB3F

monochromatic

#20315F #30498D #3F60BB #6A85CD #98AADC

Accessibility & contrast

On white

5.83

#3F60BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3F60BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F60BB

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F60BB	#FFFFFF	#000000	##FFFFFF
##3F60BB	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6BBE

Deuteranopia (green-blind)

#1160B9

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f60bb;
/* rgb */ color: rgb(63, 96, 187);
/* oklch */ color: oklch(51.3% 0.148 266.3);

Tailwind

colors: {
  custom: {
    50: '#818cd0',
    500: '#3f60bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f60bb;
$custom-light: #818cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f60bb",
  "rgb": {
    "r": 63,
    "g": 96,
    "b": 187
  },
  "hsl": {
    "h": 224.032,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51311,
    "c": 0.14822,
    "h": 266.3
  },
  "luminance": 0.1301
}

Semantic roles & 50–950 ramp

primary

#3F60BB

secondary

#C8B98E

accent

#B44FD9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3F60BB

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

Preview Lab → · Contrast checker → · Palette generator →