#3F3DBF#3F3DBF

#3F3DBF is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.1% C 0.197 H 275.8°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DBF
RGB	rgb(63, 61, 191)
HSL	hsl(241, 52%, 49%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(67%, 68.1%, 0%, 25.1%)
CIE-LAB	lab(34.30, 41.58, -67.74)
CIE-LCH	lch(34.30, 79.48, 301.54°)
OKLab	oklab(45.1% 0.0197 -0.1956)
OKLCH	oklch(45.1% 0.197 275.8)
XYZ	xyz(13.1195, 8.1547, 50.1627)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.72

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DBF #BDBF3D

analogous

#3D7CBF #3F3DBF #803DBF

triadic

#3F3DBF #BF3F3D #3DBF3F

tetradic

#3F3DBF #BF3D7C #BDBF3D #3DBF80

square

#3F3DBF #BF3D7C #BDBF3D #3DBF80

split-complementary

#3F3DBF #BF803D #7CBF3D

monochromatic

#201F62 #302E91 #3F3DBF #6B6ACF #9998DE

Accessibility & contrast

On white

7.98

#3F3DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3F3DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DBF

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DBF	#FFFFFF	#000000	##FFFFFF
##3F3DBF	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f3dbf;
/* rgb */ color: rgb(63, 61, 191);
/* oklch */ color: oklch(45.1% 0.197 275.8);

Tailwind

colors: {
  custom: {
    50: '#8473d3',
    500: '#3f3dbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dbf;
$custom-light: #8473d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dbf",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 191
  },
  "hsl": {
    "h": 240.923,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45103,
    "c": 0.19658,
    "h": 275.8
  },
  "luminance": 0.08156
}

Semantic roles & 50–950 ramp

primary

#3F3DBF

secondary

#C9CA8E

accent

#DB4DD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3DBF

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

Preview Lab → · Contrast checker → · Palette generator →