#3F3CA9#3F3CA9

#3F3CA9 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.169 H 277.8°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CA9
RGB	rgb(63, 60, 169)
HSL	hsl(242, 48%, 45%)
HSV	hsv(242, 64%, 66%)
CMYK	cmyk(62.7%, 64.5%, 0%, 33.7%)
CIE-LAB	lab(32.15, 34.82, -58.21)
CIE-LCH	lch(32.15, 67.83, 300.88°)
OKLab	oklab(42.95% 0.0228 -0.1677)
OKLCH	oklch(42.95% 0.169 277.8)
XYZ	xyz(10.8249, 7.1522, 38.3385)
Luminance	0.0715 (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

#3F3CA9 #A6A93C

analogous

#3C70A9 #3F3CA9 #753CA9

triadic

#3F3CA9 #A93F3C #3CA93F

tetradic

#3F3CA9 #A93C70 #A6A93C #3CA975

square

#3F3CA9 #A93C70 #A6A93C #3CA975

split-complementary

#3F3CA9 #A9753C #70A93C

monochromatic

#1D1C4F #2E2C7C #3F3CA9 #605DC5 #8C8AD5

Accessibility & contrast

On white

8.64

#3F3CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F3CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CA9

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CA9	#FFFFFF	#000000	##FFFFFF
##3F3CA9	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AC

Deuteranopia (green-blind)

#0047A7

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f3ca9;
/* rgb */ color: rgb(63, 60, 169);
/* oklch */ color: oklch(42.9% 0.169 277.8);

Tailwind

colors: {
  custom: {
    50: '#8072c3',
    500: '#3f3ca9',
    950: '#000000',
  },
}

SCSS

$custom: #3f3ca9;
$custom-light: #8072c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3ca9",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 169
  },
  "hsl": {
    "h": 241.651,
    "s": 47.598,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42949,
    "c": 0.16922,
    "h": 277.8
  },
  "luminance": 0.07153
}

Semantic roles & 50–950 ramp

primary

#3F3CA9

secondary

#BEC081

accent

#D751D3

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3F3CA9

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

Preview Lab → · Contrast checker → · Palette generator →