#3F41DE#3F41DE

#3F41DE is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.7% C 0.231 H 273.2°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F41DE
RGB	rgb(63, 65, 222)
HSL	hsl(239, 71%, 56%)
HSV	hsv(239, 72%, 87%)
CMYK	cmyk(71.6%, 70.7%, 0%, 12.9%)
CIE-LAB	lab(38.04, 49.45, -79.56)
CIE-LCH	lch(38.04, 93.68, 301.86°)
OKLab	oklab(48.66% 0.013 -0.2301)
OKLCH	oklch(48.66% 0.231 273.2)
XYZ	xyz(17.1206, 10.1096, 70.1421)
Luminance	0.1011 (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

#3F41DE #DEDC3F

analogous

#3F90DE #3F41DE #8C3FDE

triadic

#3F41DE #DE3F41 #41DE3F

tetradic

#3F41DE #DE3F90 #DEDC3F #3FDE8C

square

#3F41DE #DE3F90 #DEDC3F #3FDE8C

split-complementary

#3F41DE #DE8C3F #90DE3F

monochromatic

#18198B #2123BF #3F41DE #7375E7 #A7A8F0

Accessibility & contrast

On white

6.95

#3F41DE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3F41DE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F41DE

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F41DE	#FFFFFF	#000000	##FFFFFF
##3F41DE	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061E3

Deuteranopia (green-blind)

#0052DB

Tritanopia (blue-blind)

#006D8B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f41de;
/* rgb */ color: rgb(63, 65, 222);
/* oklch */ color: oklch(48.7% 0.231 273.2);

Tailwind

colors: {
  custom: {
    50: '#8b77ea',
    500: '#3f41de',
    950: '#000000',
  },
}

SCSS

$custom: #3f41de;
$custom-light: #8b77ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3f41de",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 222
  },
  "hsl": {
    "h": 239.245,
    "s": 70.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48663,
    "c": 0.2305,
    "h": 273.2
  },
  "luminance": 0.10111
}

Semantic roles & 50–950 ramp

primary

#3F41DE

secondary

#DDDD9B

accent

#EB3AED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #3F41DE

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

Preview Lab → · Contrast checker → · Palette generator →