#3F39CE#3F39CE

#3F39CE is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.9% C 0.219 H 275.2°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F39CE
RGB	rgb(63, 57, 206)
HSL	hsl(242, 60%, 52%)
HSV	hsv(242, 72%, 81%)
CMYK	cmyk(69.4%, 72.3%, 0%, 19.2%)
CIE-LAB	lab(34.88, 48.78, -75.55)
CIE-LCH	lch(34.88, 89.93, 302.85°)
OKLab	oklab(45.94% 0.0199 -0.2184)
OKLCH	oklch(45.94% 0.219 275.2)
XYZ	xyz(14.6499, 8.4379, 59.2372)
Luminance	0.0844 (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

#3F39CE #C8CE39

analogous

#397ECE #3F39CE #8A39CE

triadic

#3F39CE #CE3F39 #39CE3F

tetradic

#3F39CE #CE397E #C8CE39 #39CE8A

square

#3F39CE #CE397E #C8CE39 #39CE8A

split-complementary

#3F39CE #CE8A39 #7ECE39

monochromatic

#1F1C71 #2D28A2 #3F39CE #6F6ADA #9E9BE6

Accessibility & contrast

On white

7.81

#3F39CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3F39CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39CE

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39CE	#FFFFFF	#000000	##FFFFFF
##3F39CE	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D2

Deuteranopia (green-blind)

#004BCB

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f39ce;
/* rgb */ color: rgb(63, 57, 206);
/* oklch */ color: oklch(45.9% 0.219 275.2);

Tailwind

colors: {
  custom: {
    50: '#8871de',
    500: '#3f39ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f39ce;
$custom-light: #8871de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39ce",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 206
  },
  "hsl": {
    "h": 242.416,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45943,
    "c": 0.2193,
    "h": 275.2
  },
  "luminance": 0.08439
}

Semantic roles & 50–950 ramp

primary

#3F39CE

secondary

#D0D291

accent

#E344DD

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F39CE

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

Preview Lab → · Contrast checker → · Palette generator →