#3F30BF#3F30BF

#3F30BF is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.2% C 0.210 H 277.6°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX#3F30BF
RGBrgb(63, 48, 191)
HSLhsl(246, 60%, 47%)
HSVhsv(246, 75%, 75%)
CMYKcmyk(67%, 74.9%, 0%, 25.1%)
CIE-LABlab(31.65, 48.94, -72.10)
CIE-LCHlch(31.65, 87.14, 304.16°)
OKLaboklab(43.21% 0.028 -0.2083)
OKLCHoklch(43.21% 0.21 277.6)
XYZxyz(12.5078, 6.9312, 49.9588)
Luminance0.0693 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F30BF #B0BF30
analogous
#3068BF #3F30BF #8730BF
triadic
#3F30BF #BF3F30 #30BF3F
tetradic
#3F30BF #BF3068 #B0BF30 #30BF87
square
#3F30BF #BF3068 #B0BF30 #30BF87
split-complementary
#3F30BF #BF8730 #68BF30
monochromatic
#1F175D #2F248E #3F30BF #6557D5 #9288E1

Accessibility & contrast

On white

8.80
#3F30BF on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.39
#3F30BF on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F30BF
8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F30BF#FFFFFF#000000##FFFFFF
##3F30BF1.008.802.398.80
#FFFFFF8.801.0021.001.00
#0000002.3921.001.0021.00
##FFFFFF8.801.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0050C3
Deuteranopia (green-blind)
#0044BC
Tritanopia (blue-blind)
#005975
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #3f30bf;
/* rgb */ color: rgb(63, 48, 191);
/* oklch */ color: oklch(43.2% 0.210 277.6);
Tailwind
colors: {
  custom: {
    50: '#856bd4',
    500: '#3f30bf',
    950: '#000000',
  },
}
SCSS
$custom: #3f30bf;
$custom-light: #856bd4;
$custom-dark: #000000;
JSON
{
  "hex": "#3f30bf",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 191
  },
  "hsl": {
    "h": 246.294,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43208,
    "c": 0.21016,
    "h": 277.6
  },
  "luminance": 0.06932
}

Semantic roles & 50–950 ramp

primary
#3F30BF
secondary
#C3CB80
accent
#E345D2
background
#F8F6FD
surface
#F0EBFA
border
#CBC6D3
text
#0D0714
muted
#7D7A83

Preview Lab

Preview with #3F30BF

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

Preview Lab → · Contrast checker → · Palette generator →

#3F30BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva