#3F4AD9#3F4AD9

#3F4AD9 is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 49.6% C 0.215 H 272.2°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AD9
RGB	rgb(63, 74, 217)
HSL	hsl(236, 67%, 55%)
HSV	hsv(236, 71%, 85%)
CMYK	cmyk(71%, 65.9%, 0%, 14.9%)
CIE-LAB	lab(39.52, 42.52, -74.27)
CIE-LCH	lch(39.52, 85.58, 299.79°)
OKLab	oklab(49.59% 0.0084 -0.2147)
OKLCH	oklch(49.59% 0.215 272.2)
XYZ	xyz(17.0188, 10.9624, 66.8512)
Luminance	0.1096 (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

#3F4AD9 #D9CE3F

analogous

#3F97D9 #3F4AD9 #813FD9

triadic

#3F4AD9 #D93F4A #4AD93F

tetradic

#3F4AD9 #D93F97 #D9CE3F #3FD981

square

#3F4AD9 #D93F97 #D9CE3F #3FD981

split-complementary

#3F4AD9 #D9813F #97D93F

monochromatic

#1A2284 #242FB7 #3F4AD9 #727AE3 #A5AAED

Accessibility & contrast

On white

6.58

#3F4AD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3F4AD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4AD9

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AD9	#FFFFFF	#000000	##FFFFFF
##3F4AD9	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064DD

Deuteranopia (green-blind)

#0056D6

Tritanopia (blue-blind)

#00708B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f4ad9;
/* rgb */ color: rgb(63, 74, 217);
/* oklch */ color: oklch(49.6% 0.215 272.2);

Tailwind

colors: {
  custom: {
    50: '#897de6',
    500: '#3f4ad9',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ad9;
$custom-light: #897de6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ad9",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 217
  },
  "hsl": {
    "h": 235.714,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.49592,
    "c": 0.21482,
    "h": 272.2
  },
  "luminance": 0.10964
}

Semantic roles & 50–950 ramp

primary

#3F4AD9

secondary

#DAD69A

accent

#DE3EEA

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3F4AD9

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

Preview Lab → · Contrast checker → · Palette generator →