#3F33BE#3F33BE

#3F33BE is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.5% C 0.206 H 277.4°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX#3F33BE
RGBrgb(63, 51, 190)
HSLhsl(245, 58%, 47%)
HSVhsv(245, 73%, 75%)
CMYKcmyk(66.8%, 73.2%, 0%, 25.5%)
CIE-LABlab(32.13, 47.00, -70.73)
CIE-LCHlch(32.13, 84.92, 303.60°)
OKLaboklab(43.52% 0.0264 -0.2043)
OKLCHoklch(43.52% 0.206 277.4)
XYZxyz(12.5250, 7.1410, 49.4235)
Luminance0.0714 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F33BE #B2BE33
analogous
#336CBE #3F33BE #8533BE
triadic
#3F33BE #BE3F33 #33BE3F
tetradic
#3F33BE #BE336C #B2BE33 #33BE85
square
#3F33BE #BE336C #B2BE33 #33BE85
split-complementary
#3F33BE #BE8533 #6CBE33
monochromatic
#1F195E #2F268E #3F33BE #665BD3 #938BE0

Accessibility & contrast

On white

8.65
#3F33BE on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.43
#3F33BE on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33BE
8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F33BE#FFFFFF#000000##FFFFFF
##3F33BE1.008.652.438.65
#FFFFFF8.651.0021.001.00
#0000002.4321.001.0021.00
##FFFFFF8.651.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0051C2
Deuteranopia (green-blind)
#0046BB
Tritanopia (blue-blind)
#005A76
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #3f33be;
/* rgb */ color: rgb(63, 51, 190);
/* oklch */ color: oklch(43.5% 0.206 277.4);
Tailwind
colors: {
  custom: {
    50: '#856dd3',
    500: '#3f33be',
    950: '#000000',
  },
}
SCSS
$custom: #3f33be;
$custom-light: #856dd3;
$custom-dark: #000000;
JSON
{
  "hex": "#3f33be",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 190
  },
  "hsl": {
    "h": 245.18,
    "s": 57.676,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43516,
    "c": 0.20601,
    "h": 277.4
  },
  "luminance": 0.07142
}

Semantic roles & 50–950 ramp

primary
#3F33BE
secondary
#C4CA83
accent
#E147D4
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3F33BE

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

Preview Lab → · Contrast checker → · Palette generator →

#3F33BE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva