#3F44E0#3F44E0

#3F44E0 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.3% C 0.230 H 272.8°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX#3F44E0
RGBrgb(63, 68, 224)
HSLhsl(238, 72%, 56%)
HSVhsv(238, 72%, 88%)
CMYKcmyk(71.9%, 69.6%, 0%, 12.2%)
CIE-LABlab(38.85, 48.40, -79.37)
CIE-LCHlch(38.85, 92.96, 301.37°)
OKLaboklab(49.3% 0.0111 -0.2296)
OKLCHoklch(49.3% 0.23 272.8)
XYZxyz(17.5671, 10.5710, 71.6212)
Luminance0.1057 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F44E0 #E0DB3F
analogous
#3F95E0 #3F44E0 #8B3FE0
triadic
#3F44E0 #E03F44 #44E03F
tetradic
#3F44E0 #E03F95 #E0DB3F #3FE08B
square
#3F44E0 #E03F95 #E0DB3F #3FE08B
split-complementary
#3F44E0 #E08B3F #95E03F
monochromatic
#171B8E #1F24C2 #3F44E0 #7477E9 #A8ABF1

Accessibility & contrast

On white

6.74
#3F44E0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.11
#3F44E0 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F44E0
6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F44E0#FFFFFF#000000##FFFFFF
##3F44E01.006.743.116.74
#FFFFFF6.741.0021.001.00
#0000003.1121.001.0021.00
##FFFFFF6.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0063E5
Deuteranopia (green-blind)
#0054DD
Tritanopia (blue-blind)
#006F8D
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #3f44e0;
/* rgb */ color: rgb(63, 68, 224);
/* oklch */ color: oklch(49.3% 0.230 272.8);
Tailwind
colors: {
  custom: {
    50: '#8b79eb',
    500: '#3f44e0',
    950: '#000000',
  },
}
SCSS
$custom: #3f44e0;
$custom-light: #8b79eb;
$custom-dark: #000000;
JSON
{
  "hex": "#3f44e0",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 224
  },
  "hsl": {
    "h": 238.137,
    "s": 72.197,
    "l": 56.275
  },
  "oklch": {
    "l": 0.49301,
    "c": 0.22985,
    "h": 272.8
  },
  "luminance": 0.10573
}

Semantic roles & 50–950 ramp

primary
#3F44E0
secondary
#DFDC9C
accent
#E939EF
background
#F9F7FE
surface
#F2EDFD
border
#CCC8D5
text
#0E0916
muted
#7E7B84

Preview Lab

Preview with #3F44E0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F44E0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva