#3F33D1#3F33D1

#3F33D1 is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.4% C 0.229 H 275.6°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F33D1
RGB	rgb(63, 51, 209)
HSL	hsl(245, 63%, 51%)
HSV	hsv(245, 76%, 82%)
CMYK	cmyk(69.9%, 75.6%, 0%, 18%)
CIE-LAB	lab(34.04, 52.94, -78.68)
CIE-LCH	lch(34.04, 94.83, 303.94°)
OKLab	oklab(45.44% 0.0224 -0.2275)
OKLCH	oklch(45.44% 0.229 275.6)
XYZ	xyz(14.7386, 8.0265, 61.0818)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.81

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F33D1 #C5D133

analogous

#3376D1 #3F33D1 #8E33D1

triadic

#3F33D1 #D13F33 #33D13F

tetradic

#3F33D1 #D13376 #C5D133 #33D18E

square

#3F33D1 #D13376 #C5D133 #33D18E

split-complementary

#3F33D1 #D18E33 #76D133

monochromatic

#201970 #2E25A2 #3F33D1 #6E65DC #9D97E8

Accessibility & contrast

On white

8.06

#3F33D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F33D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33D1

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F33D1	#FFFFFF	#000000	##FFFFFF
##3F33D1	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D6

Deuteranopia (green-blind)

#0049CE

Tritanopia (blue-blind)

#006280

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f33d1;
/* rgb */ color: rgb(63, 51, 209);
/* oklch */ color: oklch(45.4% 0.229 275.6);

Tailwind

colors: {
  custom: {
    50: '#896ee0',
    500: '#3f33d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f33d1;
$custom-light: #896ee0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f33d1",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 209
  },
  "hsl": {
    "h": 244.557,
    "s": 63.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.45438,
    "c": 0.22856,
    "h": 275.6
  },
  "luminance": 0.08028
}

Semantic roles & 50–950 ramp

primary

#3F33D1

secondary

#CED38D

accent

#E642DA

background

#F9F6FE

surface

#F2ECFC

border

#CCC7D5

text

#0D0715

muted

#7E7A84

Preview Lab

Preview with #3F33D1

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

Preview Lab → · Contrast checker → · Palette generator →