#3F38BE#3F38BE

#3F38BE is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.2% C 0.201 H 276.6°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX#3F38BE
RGBrgb(63, 56, 190)
HSLhsl(243, 54%, 48%)
HSVhsv(243, 71%, 75%)
CMYKcmyk(66.8%, 70.5%, 0%, 25.5%)
CIE-LABlab(33.14, 44.18, -69.06)
CIE-LCHlch(33.14, 81.98, 302.61°)
OKLaboklab(44.24% 0.0232 -0.1995)
OKLCHoklch(44.24% 0.201 276.6)
XYZxyz(12.7553, 7.6017, 49.5003)
Luminance0.0760 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F38BE #B7BE38
analogous
#3874BE #3F38BE #8238BE
triadic
#3F38BE #BE3F38 #38BE3F
tetradic
#3F38BE #BE3874 #B7BE38 #38BE82
square
#3F38BE #BE3874 #B7BE38 #38BE82
split-complementary
#3F38BE #BE8238 #74BE38
monochromatic
#201C5F #2F2A8F #3F38BE #6862D1 #9692DF

Accessibility & contrast

On white

8.33
#3F38BE on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.52
#3F38BE on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38BE
8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F38BE#FFFFFF#000000##FFFFFF
##3F38BE1.008.332.528.33
#FFFFFF8.331.0021.001.00
#0000002.5221.001.0021.00
##FFFFFF8.331.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0054C2
Deuteranopia (green-blind)
#0048BC
Tritanopia (blue-blind)
#005D77
Achromatopsia (no color)
#4E4E4E

Design tokens & code

CSS
--color: #3f38be;
/* rgb */ color: rgb(63, 56, 190);
/* oklch */ color: oklch(44.2% 0.201 276.6);
Tailwind
colors: {
  custom: {
    50: '#8570d3',
    500: '#3f38be',
    950: '#000000',
  },
}
SCSS
$custom: #3f38be;
$custom-light: #8570d3;
$custom-dark: #000000;
JSON
{
  "hex": "#3f38be",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 190
  },
  "hsl": {
    "h": 243.134,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44238,
    "c": 0.20081,
    "h": 276.6
  },
  "luminance": 0.07603
}

Semantic roles & 50–950 ramp

primary
#3F38BE
secondary
#C6CA88
accent
#DE4AD6
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3F38BE

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

Preview Lab → · Contrast checker → · Palette generator →

#3F38BE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva