#383FB3#383FB3

#383FB3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.9% C 0.181 H 273.6°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX#383FB3
RGBrgb(56, 63, 179)
HSLhsl(237, 52%, 46%)
HSVhsv(237, 69%, 70%)
CMYKcmyk(68.7%, 64.8%, 0%, 29.8%)
CIE-LABlab(33.24, 35.35, -62.41)
CIE-LCHlch(33.24, 71.73, 299.53°)
OKLaboklab(43.89% 0.0112 -0.1802)
OKLCHoklch(43.89% 0.181 273.6)
XYZxyz(11.5424, 7.6494, 43.5073)
Luminance0.0765 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#383FB3 #B3AC38
analogous
#387CB3 #383FB3 #6E38B3
triadic
#383FB3 #B3383F #3FB338
tetradic
#383FB3 #B3387C #B3AC38 #38B36E
square
#383FB3 #B3387C #B3AC38 #38B36E
split-complementary
#383FB3 #B36E38 #7CB338
monochromatic
#1B1E56 #292F84 #383FB3 #5C63CC #8B8FDB

Accessibility & contrast

On white

8.30
#383FB3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.53
#383FB3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383FB3
8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##383FB3#FFFFFF#000000##FFFFFF
##383FB31.008.302.538.30
#FFFFFF8.301.0021.001.00
#0000002.5321.001.0021.00
##FFFFFF8.301.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0054B7
Deuteranopia (green-blind)
#0049B1
Tritanopia (blue-blind)
#005D73
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #383fb3;
/* rgb */ color: rgb(56, 63, 179);
/* oklch */ color: oklch(43.9% 0.181 273.6);
Tailwind
colors: {
  custom: {
    50: '#7f74cb',
    500: '#383fb3',
    950: '#000000',
  },
}
SCSS
$custom: #383fb3;
$custom-light: #7f74cb;
$custom-dark: #000000;
JSON
{
  "hex": "#383fb3",
  "rgb": {
    "r": 56,
    "g": 63,
    "b": 179
  },
  "hsl": {
    "h": 236.585,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43886,
    "c": 0.18051,
    "h": 273.6
  },
  "luminance": 0.0765
}

Semantic roles & 50–950 ramp

primary
#383FB3
secondary
#C5C182
accent
#D44CDC
background
#F8F7FC
surface
#EFEDF9
border
#CAC8D2
text
#0B0813
muted
#7C7B82

Preview Lab

Preview with #383FB3

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

Preview Lab → · Contrast checker → · Palette generator →

#383FB3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva