#3F30AC#3F30AC

#3F30AC is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.3% C 0.187 H 279.8°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F30AC
RGB	rgb(63, 48, 172)
HSL	hsl(247, 56%, 43%)
HSV	hsv(247, 72%, 67%)
CMYK	cmyk(63.4%, 72.1%, 0%, 32.5%)
CIE-LAB	lab(29.78, 42.96, -63.89)
CIE-LCH	lch(29.78, 76.98, 303.92°)
OKLab	oklab(41.32% 0.0319 -0.1843)
OKLCH	oklch(41.32% 0.187 279.8)
XYZ	xyz(10.5509, 6.1484, 39.6525)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F30AC #9DAC30

analogous

#305FAC #3F30AC #7D30AC

triadic

#3F30AC #AC3F30 #30AC3F

tetradic

#3F30AC #AC305F #9DAC30 #30AC7D

square

#3F30AC #AC305F #9DAC30 #30AC7D

split-complementary

#3F30AC #AC7D30 #5FAC30

monochromatic

#1C154C #2D237C #3F30AC #5C4CCD #877CDA

Accessibility & contrast

On white

9.42

#3F30AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3F30AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F30AC

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F30AC	#FFFFFF	#000000	##FFFFFF
##3F30AC	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB0

Deuteranopia (green-blind)

#0041AA

Tritanopia (blue-blind)

#00526B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f30ac;
/* rgb */ color: rgb(63, 48, 172);
/* oklch */ color: oklch(41.3% 0.187 279.8);

Tailwind

colors: {
  custom: {
    50: '#826ac6',
    500: '#3f30ac',
    950: '#000000',
  },
}

SCSS

$custom: #3f30ac;
$custom-light: #826ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f30ac",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 172
  },
  "hsl": {
    "h": 247.258,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41324,
    "c": 0.18705,
    "h": 279.8
  },
  "luminance": 0.06149
}

Semantic roles & 50–950 ramp

primary

#3F30AC

secondary

#BAC375

accent

#E048CD

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3F30AC

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

Preview Lab → · Contrast checker → · Palette generator →