#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
RGBrgb(63, 51, 202)
HSLhsl(245, 60%, 50%)
HSVhsv(245, 75%, 79%)
CMYKcmyk(68.8%, 74.8%, 0%, 20.8%)
CIE-LABlab(33.32, 50.77, -75.79)
CIE-LCHlch(33.32, 91.22, 303.82°)
OKLaboklab(44.72% 0.0239 -0.219)
OKLCHoklch(44.72% 0.22 276.2)
XYZxyz(13.8909, 7.6874, 56.6174)
Luminance0.0769 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

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
##3F33CA1.008.272.548.27
#FFFFFF8.271.0021.001.00
#0000002.5421.001.0021.00
##FFFFFF8.271.0021.001.00

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 →

#3F33CA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva