#3F65D2#3F65D2

#3F65D2 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.0% C 0.174 H 266.2°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F65D2
RGB	rgb(63, 101, 210)
HSL	hsl(224, 62%, 54%)
HSV	hsv(224, 70%, 82%)
CMYK	cmyk(70%, 51.9%, 0%, 17.6%)
CIE-LAB	lab(45.66, 23.13, -60.26)
CIE-LCH	lch(45.66, 64.55, 291.00°)
OKLab	oklab(53.99% -0.0115 -0.1732)
OKLCH	oklch(53.99% 0.174 266.2)
XYZ	xyz(18.3324, 15.0154, 62.8924)
Luminance	0.1502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65D2 #D2AC3F

analogous

#3FAED2 #3F65D2 #623FD2

triadic

#3F65D2 #D23F65 #65D23F

tetradic

#3F65D2 #D23FAE #D2AC3F #3FD262

square

#3F65D2 #D23FAE #D2AC3F #3FD262

split-complementary

#3F65D2 #D2623F #AED23F

monochromatic

#1D357A #284AAC #3F65D2 #718DDE #A2B5E9

Accessibility & contrast

On white

5.25

#3F65D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#3F65D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65D2

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65D2	#FFFFFF	#000000	##FFFFFF
##3F65D2	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D73D6

Deuteranopia (green-blind)

#0066D0

Tritanopia (blue-blind)

#007F92

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f65d2;
/* rgb */ color: rgb(63, 101, 210);
/* oklch */ color: oklch(54.0% 0.174 266.2);

Tailwind

colors: {
  custom: {
    50: '#8590e0',
    500: '#3f65d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f65d2;
$custom-light: #8590e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65d2",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 210
  },
  "hsl": {
    "h": 224.49,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.53987,
    "c": 0.17362,
    "h": 266.2
  },
  "luminance": 0.15017
}

Semantic roles & 50–950 ramp

primary

#3F65D2

secondary

#D6C697

accent

#BB43E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F65D2

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

Preview Lab → · Contrast checker → · Palette generator →