#3F39AC#3F39AC

#3F39AC is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.177 H 278.1°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX#3F39AC
RGBrgb(63, 57, 172)
HSLhsl(243, 50%, 45%)
HSVhsv(243, 67%, 67%)
CMYKcmyk(63.4%, 66.9%, 0%, 32.5%)
CIE-LABlab(31.72, 37.67, -60.71)
CIE-LCHlch(31.72, 71.45, 301.81°)
OKLaboklab(42.71% 0.0251 -0.175)
OKLCHoklch(42.71% 0.177 278.1)
XYZxyz(10.9570, 6.9607, 39.7879)
Luminance0.0696 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F39AC #A6AC39
analogous
#396DAC #3F39AC #7839AC
triadic
#3F39AC #AC3F39 #39AC3F
tetradic
#3F39AC #AC396D #A6AC39 #39AC78
square
#3F39AC #AC396D #A6AC39 #39AC78
split-complementary
#3F39AC #AC7839 #6DAC39
monochromatic
#1D1B50 #2E2A7E #3F39AC #605AC8 #8C88D8

Accessibility & contrast

On white

8.78
#3F39AC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.39
#3F39AC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39AC
8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F39AC#FFFFFF#000000##FFFFFF
##3F39AC1.008.782.398.78
#FFFFFF8.781.0021.001.00
#0000002.3921.001.0021.00
##FFFFFF8.781.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004FB0
Deuteranopia (green-blind)
#0046AA
Tritanopia (blue-blind)
#00576D
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #3f39ac;
/* rgb */ color: rgb(63, 57, 172);
/* oklch */ color: oklch(42.7% 0.177 278.1);
Tailwind
colors: {
  custom: {
    50: '#8170c6',
    500: '#3f39ac',
    950: '#000000',
  },
}
SCSS
$custom: #3f39ac;
$custom-light: #8170c6;
$custom-dark: #000000;
JSON
{
  "hex": "#3f39ac",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 243.13,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42713,
    "c": 0.17681,
    "h": 278.1
  },
  "luminance": 0.06962
}

Semantic roles & 50–950 ramp

primary
#3F39AC
secondary
#BEC27F
accent
#DA4ED2
background
#F8F6FC
surface
#F0ECF8
border
#CBC7D1
text
#0B0713
muted
#7C7A82

Preview Lab

Preview with #3F39AC

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

Preview Lab → · Contrast checker → · Palette generator →

#3F39AC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva