#3F65AA#3F65AA

#3F65AA is a mid, moderate blue. Relative luminance 0.133; OKLCH L 51.3% C 0.118 H 261.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F65AA
RGB	rgb(63, 101, 170)
HSL	hsl(219, 46%, 46%)
HSV	hsv(219, 63%, 67%)
CMYK	cmyk(62.9%, 40.6%, 0%, 33.3%)
CIE-LAB	lab(43.16, 8.79, -41.06)
CIE-LCH	lch(43.16, 41.99, 282.08°)
OKLab	oklab(51.27% -0.0176 -0.1168)
OKLCH	oklch(51.27% 0.118 261.4)
XYZ	xyz(13.9567, 13.2651, 39.8473)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65AA #AA843F

analogous

#3F9AAA #3F65AA #4F3FAA

triadic

#3F65AA #AA3F65 #65AA3F

tetradic

#3F65AA #AA3F9A #AA843F #3FAA4F

square

#3F65AA #AA3F9A #AA843F #3FAA4F

split-complementary

#3F65AA #AA4F3F #9AAA3F

monochromatic

#1E3051 #2E4A7D #3F65AA #6285C5 #8EA7D5

Accessibility & contrast

On white

5.75

#3F65AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3F65AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65AA

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65AA	#FFFFFF	#000000	##FFFFFF
##3F65AA	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476BAD

Deuteranopia (green-blind)

#3761A9

Tritanopia (blue-blind)

#00757F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f65aa;
/* rgb */ color: rgb(63, 101, 170);
/* oklch */ color: oklch(51.3% 0.118 261.4);

Tailwind

colors: {
  custom: {
    50: '#7e90c4',
    500: '#3f65aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f65aa;
$custom-light: #7e90c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65aa",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 170
  },
  "hsl": {
    "h": 218.692,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.51274,
    "c": 0.11812,
    "h": 261.4
  },
  "luminance": 0.13266
}

Semantic roles & 50–950 ramp

primary

#3F65AA

secondary

#C0AB85

accent

#A752D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #3F65AA

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

Preview Lab → · Contrast checker → · Palette generator →