#3F3DBD#3F3DBD

#3F3DBD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.194 H 275.9°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DBD
RGB	rgb(63, 61, 189)
HSL	hsl(241, 51%, 49%)
HSV	hsv(241, 68%, 74%)
CMYK	cmyk(66.7%, 67.7%, 0%, 25.9%)
CIE-LAB	lab(34.12, 40.91, -66.86)
CIE-LCH	lch(34.12, 78.38, 301.46°)
OKLab	oklab(44.92% 0.02 -0.193)
OKLCH	oklch(44.92% 0.194 275.9)
XYZ	xyz(12.9009, 8.0672, 49.0115)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.63

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DBD #BBBD3D

analogous

#3D7BBD #3F3DBD #7F3DBD

triadic

#3F3DBD #BD3F3D #3DBD3F

tetradic

#3F3DBD #BD3D7B #BBBD3D #3DBD7F

square

#3F3DBD #BD3D7B #BBBD3D #3DBD7F

split-complementary

#3F3DBD #BD7F3D #7BBD3D

monochromatic

#201F60 #302E8F #3F3DBD #6A69CE #9897DD

Accessibility & contrast

On white

8.03

#3F3DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F3DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DBD

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DBD	#FFFFFF	#000000	##FFFFFF
##3F3DBD	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3dbd;
/* rgb */ color: rgb(63, 61, 189);
/* oklch */ color: oklch(44.9% 0.194 275.9);

Tailwind

colors: {
  custom: {
    50: '#8473d2',
    500: '#3f3dbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dbd;
$custom-light: #8473d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dbd",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 189
  },
  "hsl": {
    "h": 240.938,
    "s": 51.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44917,
    "c": 0.19405,
    "h": 275.9
  },
  "luminance": 0.08068
}

Semantic roles & 50–950 ramp

primary

#3F3DBD

secondary

#C8C98D

accent

#DB4DD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3DBD

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

Preview Lab → · Contrast checker → · Palette generator →