#3F65AC#3F65AC

#3F65AC is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.4% C 0.121 H 261.8°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F65AC
RGB	rgb(63, 101, 172)
HSL	hsl(219, 46%, 46%)
HSV	hsv(219, 63%, 67%)
CMYK	cmyk(63.4%, 41.3%, 0%, 32.5%)
CIE-LAB	lab(43.27, 9.49, -42.05)
CIE-LCH	lch(43.27, 43.11, 282.72°)
OKLab	oklab(51.4% -0.0172 -0.1197)
OKLCH	oklch(51.4% 0.121 261.8)
XYZ	xyz(14.1474, 13.3414, 40.8513)
Luminance	0.1334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F65AC #AC863F

analogous

#3F9BAC #3F65AC #503FAC

triadic

#3F65AC #AC3F65 #65AC3F

tetradic

#3F65AC #AC3F9B #AC863F #3FAC50

square

#3F65AC #AC3F9B #AC863F #3FAC50

split-complementary

#3F65AC #AC503F #9BAC3F

monochromatic

#1E3052 #2F4B7F #3F65AC #6385C6 #8FA8D6

Accessibility & contrast

On white

5.72

#3F65AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3F65AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F65AC

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F65AC	#FFFFFF	#000000	##FFFFFF
##3F65AC	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456CAF

Deuteranopia (green-blind)

#3562AB

Tritanopia (blue-blind)

#007580

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f65ac;
/* rgb */ color: rgb(63, 101, 172);
/* oklch */ color: oklch(51.4% 0.121 261.8);

Tailwind

colors: {
  custom: {
    50: '#7e90c5',
    500: '#3f65ac',
    950: '#000000',
  },
}

SCSS

$custom: #3f65ac;
$custom-light: #7e90c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f65ac",
  "rgb": {
    "r": 63,
    "g": 101,
    "b": 172
  },
  "hsl": {
    "h": 219.083,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.51398,
    "c": 0.12094,
    "h": 261.8
  },
  "luminance": 0.13343
}

Semantic roles & 50–950 ramp

primary

#3F65AC

secondary

#C1AC86

accent

#A852D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3F65AC

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

Preview Lab → · Contrast checker → · Palette generator →