#3F4ED6#3F4ED6

#3F4ED6 is a mid, highly saturated blue. Relative luminance 0.114; OKLCH L 50.0% C 0.207 H 271.7°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F4ED6
RGB	rgb(63, 78, 214)
HSL	hsl(234, 65%, 54%)
HSV	hsv(234, 71%, 84%)
CMYK	cmyk(70.6%, 63.6%, 0%, 16.1%)
CIE-LAB	lab(40.18, 39.05, -71.46)
CIE-LCH	lch(40.18, 81.44, 298.66°)
OKLab	oklab(50% 0.006 -0.2064)
OKLCH	oklch(50% 0.207 271.7)
XYZ	xyz(16.9078, 11.3589, 64.9067)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4ED6 #D6C73F

analogous

#3F99D6 #3F4ED6 #7C3FD6

triadic

#3F4ED6 #D63F4E #4ED63F

tetradic

#3F4ED6 #D63F99 #D6C73F #3FD67C

square

#3F4ED6 #D63F99 #D6C73F #3FD67C

split-complementary

#3F4ED6 #D67C3F #99D63F

monochromatic

#1B257F #2634B2 #3F4ED6 #717CE1 #A4ABEC

Accessibility & contrast

On white

6.42

#3F4ED6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3F4ED6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4ED6

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4ED6	#FFFFFF	#000000	##FFFFFF
##3F4ED6	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066DA

Deuteranopia (green-blind)

#0058D3

Tritanopia (blue-blind)

#00718B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f4ed6;
/* rgb */ color: rgb(63, 78, 214);
/* oklch */ color: oklch(50.0% 0.207 271.7);

Tailwind

colors: {
  custom: {
    50: '#887fe4',
    500: '#3f4ed6',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ed6;
$custom-light: #887fe4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ed6",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 214
  },
  "hsl": {
    "h": 234.04,
    "s": 64.807,
    "l": 54.314
  },
  "oklch": {
    "l": 0.49995,
    "c": 0.20652,
    "h": 271.7
  },
  "luminance": 0.11361
}

Semantic roles & 50–950 ramp

primary

#3F4ED6

secondary

#D8D298

accent

#D740E8

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3F4ED6

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

Preview Lab → · Contrast checker → · Palette generator →