#3F33DC#3F33DC

#3F33DC is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.6% C 0.241 H 274.8°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F33DC
RGB	rgb(63, 51, 220)
HSL	hsl(244, 71%, 53%)
HSV	hsv(244, 77%, 86%)
CMYK	cmyk(71.4%, 76.8%, 0%, 13.7%)
CIE-LAB	lab(35.18, 56.31, -83.13)
CIE-LCH	lch(35.18, 100.40, 304.11°)
OKLab	oklab(46.58% 0.02 -0.2404)
OKLCH	oklch(46.58% 0.241 274.8)
XYZ	xyz(16.1477, 8.5901, 68.5033)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.02

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F33DC #D0DC33

analogous

#337CDC #3F33DC #9333DC

triadic

#3F33DC #DC3F33 #33DC3F

tetradic

#3F33DC #DC337C #D0DC33 #33DC93

square

#3F33DC #DC337C #D0DC33 #33DC93

split-complementary

#3F33DC #DC9333 #7CDC33

monochromatic

#1D167F #291FB3 #3F33DC #7067E5 #A19BEE

Accessibility & contrast

On white

7.73

#3F33DC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3F33DC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33DC

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F33DC	#FFFFFF	#000000	##FFFFFF
##3F33DC	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AE1

Deuteranopia (green-blind)

#004BD9

Tritanopia (blue-blind)

#006687

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f33dc;
/* rgb */ color: rgb(63, 51, 220);
/* oklch */ color: oklch(46.6% 0.241 274.8);

Tailwind

colors: {
  custom: {
    50: '#8b6ee8',
    500: '#3f33dc',
    950: '#000000',
  },
}

SCSS

$custom: #3f33dc;
$custom-light: #8b6ee8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f33dc",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 220
  },
  "hsl": {
    "h": 244.26,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.4658,
    "c": 0.24124,
    "h": 274.8
  },
  "luminance": 0.08592
}

Semantic roles & 50–950 ramp

primary

#3F33DC

secondary

#D5DA91

accent

#ED3AE1

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #3F33DC

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

Preview Lab → · Contrast checker → · Palette generator →