#3641B7#3641B7

#3641B7 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.5% C 0.184 H 272.3°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX#3641B7
RGBrgb(54, 65, 183)
HSLhsl(235, 54%, 46%)
HSVhsv(235, 70%, 72%)
CMYKcmyk(70.5%, 64.5%, 0%, 28.2%)
CIE-LABlab(33.95, 35.24, -63.63)
CIE-LCHlch(33.95, 72.74, 298.98°)
OKLaboklab(44.48% 0.0073 -0.1838)
OKLCHoklch(44.48% 0.184 272.3)
XYZxyz(11.9560, 7.9826, 45.7013)
Luminance0.0798 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3641B7 #B7AC36
analogous
#3682B7 #3641B7 #6C36B7
triadic
#3641B7 #B73641 #41B736
tetradic
#3641B7 #B73682 #B7AC36 #36B76C
square
#3641B7 #B73682 #B7AC36 #36B76C
split-complementary
#3641B7 #B76C36 #82B736
monochromatic
#1A1F58 #283088 #3641B7 #5B65CF #8B92DD

Accessibility & contrast

On white

8.09
#3641B7 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#3641B7 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3641B7
8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3641B7#FFFFFF#000000##FFFFFF
##3641B71.008.092.608.09
#FFFFFF8.091.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.091.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0056BB
Deuteranopia (green-blind)
#004AB5
Tritanopia (blue-blind)
#006076
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #3641b7;
/* rgb */ color: rgb(54, 65, 183);
/* oklch */ color: oklch(44.5% 0.184 272.3);
Tailwind
colors: {
  custom: {
    50: '#7f76ce',
    500: '#3641b7',
    950: '#000000',
  },
}
SCSS
$custom: #3641b7;
$custom-light: #7f76ce;
$custom-dark: #000000;
JSON
{
  "hex": "#3641b7",
  "rgb": {
    "r": 54,
    "g": 65,
    "b": 183
  },
  "hsl": {
    "h": 234.884,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44477,
    "c": 0.18391,
    "h": 272.3
  },
  "luminance": 0.07984
}

Semantic roles & 50–950 ramp

primary
#3641B7
secondary
#C7C182
accent
#D14ADE
background
#F8F7FC
surface
#F0EDF9
border
#CBC8D2
text
#0B0814
muted
#7C7B82

Preview Lab

Preview with #3641B7

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

Preview Lab → · Contrast checker → · Palette generator →

#3641B7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva