#3F33D0#3F33D0

#3F33D0 is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.3% C 0.227 H 275.7°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX#3F33D0
RGBrgb(63, 51, 208)
HSLhsl(245, 63%, 51%)
HSVhsv(245, 75%, 82%)
CMYKcmyk(69.7%, 75.5%, 0%, 18.4%)
CIE-LABlab(33.94, 52.63, -78.27)
CIE-LCHlch(33.94, 94.32, 303.92°)
OKLaboklab(45.34% 0.0226 -0.2263)
OKLCHoklch(45.34% 0.227 275.7)
XYZxyz(14.6152, 7.9771, 60.4318)
Luminance0.0798 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F33D0 #C4D033
analogous
#3375D0 #3F33D0 #8D33D0
triadic
#3F33D0 #D03F33 #33D03F
tetradic
#3F33D0 #D03375 #C4D033 #33D08D
square
#3F33D0 #D03375 #C4D033 #33D08D
split-complementary
#3F33D0 #D08D33 #75D033
monochromatic
#201A6F #2E25A1 #3F33D0 #6E65DB #9D96E7

Accessibility & contrast

On white

8.09
#3F33D0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#3F33D0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F33D0
8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F33D0#FFFFFF#000000##FFFFFF
##3F33D01.008.092.608.09
#FFFFFF8.091.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.091.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0057D4
Deuteranopia (green-blind)
#0049CD
Tritanopia (blue-blind)
#006180
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #3f33d0;
/* rgb */ color: rgb(63, 51, 208);
/* oklch */ color: oklch(45.3% 0.227 275.7);
Tailwind
colors: {
  custom: {
    50: '#896ee0',
    500: '#3f33d0',
    950: '#000000',
  },
}
SCSS
$custom: #3f33d0;
$custom-light: #896ee0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f33d0",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 208
  },
  "hsl": {
    "h": 244.586,
    "s": 62.55,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45335,
    "c": 0.2274,
    "h": 275.7
  },
  "luminance": 0.07978
}

Semantic roles & 50–950 ramp

primary
#3F33D0
secondary
#CDD28D
accent
#E642D9
background
#F9F6FD
surface
#F2ECFB
border
#CCC7D4
text
#0D0715
muted
#7E7A83

Preview Lab

Preview with #3F33D0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F33D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva