#3F3DCB#3F3DCB

#3F3DCB is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.2% C 0.212 H 274.9°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DCB
RGB	rgb(63, 61, 203)
HSL	hsl(241, 58%, 52%)
HSV	hsv(241, 70%, 80%)
CMYK	cmyk(69%, 70%, 0%, 20.4%)
CIE-LAB	lab(35.41, 45.54, -72.93)
CIE-LCH	lch(35.41, 85.98, 301.98°)
OKLab	oklab(46.24% 0.0181 -0.2108)
OKLCH	oklch(46.24% 0.212 274.9)
XYZ	xyz(14.4946, 8.7047, 57.4046)
Luminance	0.0871 (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

#3F3DCB #C9CB3D

analogous

#3D82CB #3F3DCB #863DCB

triadic

#3F3DCB #CB3F3D #3DCB3F

tetradic

#3F3DCB #CB3D82 #C9CB3D #3DCB86

square

#3F3DCB #CB3D82 #C9CB3D #3DCB86

split-complementary

#3F3DCB #CB863D #82CB3D

monochromatic

#1F1E70 #2D2BA0 #3F3DCB #6F6DD8 #9F9EE5

Accessibility & contrast

On white

7.66

#3F3DCB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3F3DCB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DCB

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DCB	#FFFFFF	#000000	##FFFFFF
##3F3DCB	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACF

Deuteranopia (green-blind)

#004DC8

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f3dcb;
/* rgb */ color: rgb(63, 61, 203);
/* oklch */ color: oklch(46.2% 0.212 274.9);

Tailwind

colors: {
  custom: {
    50: '#8774dc',
    500: '#3f3dcb',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dcb;
$custom-light: #8774dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dcb",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 203
  },
  "hsl": {
    "h": 240.845,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46236,
    "c": 0.21155,
    "h": 274.9
  },
  "luminance": 0.08706
}

Semantic roles & 50–950 ramp

primary

#3F3DCB

secondary

#D0D193

accent

#E147DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F3DCB

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

Preview Lab → · Contrast checker → · Palette generator →