#3F65AF#3F65AF

#3F65AF is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.6% C 0.125 H 262.4°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F65AF
RGB	rgb(63, 101, 175)
HSL	hsl(220, 47%, 47%)
HSV	hsv(220, 64%, 69%)
CMYK	cmyk(64%, 42.3%, 0%, 31.4%)
CIE-LAB	lab(43.45, 10.56, -43.54)
CIE-LCH	lch(43.45, 44.80, 283.63°)
OKLab	oklab(51.59% -0.0166 -0.1241)
OKLCH	oklch(51.59% 0.125 262.4)
XYZ	xyz(14.4387, 13.4579, 42.3859)
Luminance	0.1346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65AF #AF893F

analogous

#3F9DAF #3F65AF #513FAF

triadic

#3F65AF #AF3F65 #65AF3F

tetradic

#3F65AF #AF3F9D #AF893F #3FAF51

square

#3F65AF #AF3F9D #AF893F #3FAF51

split-complementary

#3F65AF #AF513F #9DAF3F

monochromatic

#1F3155 #2F4B82 #3F65AF #6486C7 #91A9D7

Accessibility & contrast

On white

5.69

#3F65AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3F65AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65AF

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65AF	#FFFFFF	#000000	##FFFFFF
##3F65AF	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436CB2

Deuteranopia (green-blind)

#3362AD

Tritanopia (blue-blind)

#007681

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f65af;
/* rgb */ color: rgb(63, 101, 175);
/* oklch */ color: oklch(51.6% 0.125 262.4);

Tailwind

colors: {
  custom: {
    50: '#7f90c7',
    500: '#3f65af',
    950: '#000000',
  },
}

SCSS

$custom: #3f65af;
$custom-light: #7f90c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65af",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 175
  },
  "hsl": {
    "h": 219.643,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51587,
    "c": 0.12519,
    "h": 262.4
  },
  "luminance": 0.13459
}

Semantic roles & 50–950 ramp

primary

#3F65AF

secondary

#C3AE87

accent

#A951D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3F65AF

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

Preview Lab → · Contrast checker → · Palette generator →