#3F39C6#3F39C6

#3F39C6 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.2% C 0.210 H 275.8°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F39C6
RGB	rgb(63, 57, 198)
HSL	hsl(243, 55%, 50%)
HSV	hsv(243, 71%, 78%)
CMYK	cmyk(68.2%, 71.2%, 0%, 22.4%)
CIE-LAB	lab(34.11, 46.20, -72.16)
CIE-LCH	lch(34.11, 85.69, 302.63°)
OKLab	oklab(45.16% 0.0213 -0.2085)
OKLCH	oklch(45.16% 0.21 275.8)
XYZ	xyz(13.7027, 8.0590, 54.2485)
Luminance	0.0806 (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

#3F39C6 #C0C639

analogous

#397AC6 #3F39C6 #8539C6

triadic

#3F39C6 #C63F39 #39C63F

tetradic

#3F39C6 #C6397A #C0C639 #39C685

square

#3F39C6 #C6397A #C0C639 #39C685

split-complementary

#3F39C6 #C68539 #7AC639

monochromatic

#211E67 #302B96 #3F39C6 #6D69D4 #9B98E1

Accessibility & contrast

On white

8.04

#3F39C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F39C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39C6

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39C6	#FFFFFF	#000000	##FFFFFF
##3F39C6	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CA

Deuteranopia (green-blind)

#004AC3

Tritanopia (blue-blind)

#00607C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f39c6;
/* rgb */ color: rgb(63, 57, 198);
/* oklch */ color: oklch(45.2% 0.210 275.8);

Tailwind

colors: {
  custom: {
    50: '#8671d9',
    500: '#3f39c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f39c6;
$custom-light: #8671d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39c6",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 198
  },
  "hsl": {
    "h": 242.553,
    "s": 55.294,
    "l": 50
  },
  "oklch": {
    "l": 0.45159,
    "c": 0.2096,
    "h": 275.8
  },
  "luminance": 0.0806
}

Semantic roles & 50–950 ramp

primary

#3F39C6

secondary

#CACD8E

accent

#DF49D8

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F39C6

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

Preview Lab → · Contrast checker → · Palette generator →