#3F33C7#3F33C7

#3F33C7 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.4% C 0.217 H 276.5°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX#3F33C7
RGBrgb(63, 51, 199)
HSLhsl(245, 59%, 49%)
HSVhsv(245, 74%, 78%)
CMYKcmyk(68.3%, 74.4%, 0%, 22%)
CIE-LABlab(33.02, 49.83, -74.54)
CIE-LCHlch(33.02, 89.66, 303.77°)
OKLaboklab(44.42% 0.0246 -0.2154)
OKLCHoklch(44.42% 0.217 276.5)
XYZxyz(13.5392, 7.5467, 54.7649)
Luminance0.0755 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F33C7 #BBC733
analogous
#3371C7 #3F33C7 #8933C7
triadic
#3F33C7 #C73F33 #33C73F
tetradic
#3F33C7 #C73371 #BBC733 #33C789
square
#3F33C7 #C73371 #BBC733 #33C789
split-complementary
#3F33C7 #C78933 #71C733
monochromatic
#201A66 #302796 #3F33C7 #6A61D6 #9891E3

Accessibility & contrast

On white

8.37
#3F33C7 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.51
#3F33C7 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33C7
8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F33C7#FFFFFF#000000##FFFFFF
##3F33C71.008.372.518.37
#FFFFFF8.371.0021.001.00
#0000002.5121.001.0021.00
##FFFFFF8.371.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0054CB
Deuteranopia (green-blind)
#0047C4
Tritanopia (blue-blind)
#005E7B
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #3f33c7;
/* rgb */ color: rgb(63, 51, 199);
/* oklch */ color: oklch(44.4% 0.217 276.5);
Tailwind
colors: {
  custom: {
    50: '#876dd9',
    500: '#3f33c7',
    950: '#000000',
  },
}
SCSS
$custom: #3f33c7;
$custom-light: #876dd9;
$custom-dark: #000000;
JSON
{
  "hex": "#3f33c7",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 199
  },
  "hsl": {
    "h": 244.865,
    "s": 59.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44417,
    "c": 0.2168,
    "h": 276.5
  },
  "luminance": 0.07548
}

Semantic roles & 50–950 ramp

primary
#3F33C7
secondary
#C8CE88
accent
#E245D6
background
#F9F6FD
surface
#F1ECFB
border
#CBC7D4
text
#0D0715
muted
#7E7A83

Preview Lab

Preview with #3F33C7

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

Preview Lab → · Contrast checker → · Palette generator →

#3F33C7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva