#3F3DBE#3F3DBE

#3F3DBE is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.195 H 275.8°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DBE
RGB	rgb(63, 61, 190)
HSL	hsl(241, 51%, 49%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(66.8%, 67.9%, 0%, 25.5%)
CIE-LAB	lab(34.21, 41.25, -67.30)
CIE-LCH	lch(34.21, 78.93, 301.50°)
OKLab	oklab(45.01% 0.0198 -0.1943)
OKLCH	oklch(45.01% 0.195 275.8)
XYZ	xyz(13.0099, 8.1108, 49.5851)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.67

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DBE #BCBE3D

analogous

#3D7CBE #3F3DBE #803DBE

triadic

#3F3DBE #BE3F3D #3DBE3F

tetradic

#3F3DBE #BE3D7C #BCBE3D #3DBE80

square

#3F3DBE #BE3D7C #BCBE3D #3DBE80

split-complementary

#3F3DBE #BE803D #7CBE3D

monochromatic

#201F61 #302E90 #3F3DBE #6B69CF #9998DE

Accessibility & contrast

On white

8.01

#3F3DBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3F3DBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DBE

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DBE	#FFFFFF	#000000	##FFFFFF
##3F3DBE	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3dbe;
/* rgb */ color: rgb(63, 61, 190);
/* oklch */ color: oklch(45.0% 0.195 275.8);

Tailwind

colors: {
  custom: {
    50: '#8473d3',
    500: '#3f3dbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dbe;
$custom-light: #8473d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dbe",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 190
  },
  "hsl": {
    "h": 240.93,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4501,
    "c": 0.19531,
    "h": 275.8
  },
  "luminance": 0.08112
}

Semantic roles & 50–950 ramp

primary

#3F3DBE

secondary

#C9C98D

accent

#DB4DD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3DBE

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

Preview Lab → · Contrast checker → · Palette generator →