#3F33CA#3F33CA

#3F33CA is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.7% C 0.220 H 276.2°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F33CA
RGB	rgb(63, 51, 202)
HSL	hsl(245, 60%, 50%)
HSV	hsv(245, 75%, 79%)
CMYK	cmyk(68.8%, 74.8%, 0%, 20.8%)
CIE-LAB	lab(33.32, 50.77, -75.79)
CIE-LCH	lch(33.32, 91.22, 303.82°)
OKLab	oklab(44.72% 0.0239 -0.219)
OKLCH	oklch(44.72% 0.22 276.2)
XYZ	xyz(13.8909, 7.6874, 56.6174)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.99

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F33CA #BECA33

analogous

#3373CA #3F33CA #8A33CA

triadic

#3F33CA #CA3F33 #33CA3F

tetradic

#3F33CA #CA3373 #BECA33 #33CA8A

square

#3F33CA #CA3373 #BECA33 #33CA8A

split-complementary

#3F33CA #CA8A33 #73CA33

monochromatic

#211A68 #302799 #3F33CA #6C63D8 #9A94E4

Accessibility & contrast

On white

8.27

#3F33CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3F33CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33CA

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F33CA	#FFFFFF	#000000	##FFFFFF
##3F33CA	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CE

Deuteranopia (green-blind)

#0048C7

Tritanopia (blue-blind)

#005F7C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f33ca;
/* rgb */ color: rgb(63, 51, 202);
/* oklch */ color: oklch(44.7% 0.220 276.2);

Tailwind

colors: {
  custom: {
    50: '#876ddb',
    500: '#3f33ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f33ca;
$custom-light: #876ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f33ca",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 202
  },
  "hsl": {
    "h": 244.768,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44721,
    "c": 0.22035,
    "h": 276.2
  },
  "luminance": 0.07689
}

Semantic roles & 50–950 ramp

primary

#3F33CA

secondary

#C9CF8A

accent

#E345D6

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F33CA

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

Preview Lab → · Contrast checker → · Palette generator →