#3673D3#3673D3

#3673D3 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.6% C 0.161 H 259.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX#3673D3
RGBrgb(54, 115, 211)
HSLhsl(217, 64%, 52%)
HSVhsv(217, 74%, 83%)
CMYKcmyk(74.4%, 45.5%, 0%, 17.3%)
CIE-LABlab(49.19, 13.44, -55.16)
CIE-LCHlch(49.19, 56.77, 283.69°)
OKLaboklab(56.61% -0.03 -0.1581)
OKLCHoklch(56.61% 0.161 259.2)
XYZxyz(19.4057, 17.7467, 64.0181)
Luminance0.1775 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3673D3 #D39636
analogous
#36C2D3 #3673D3 #4836D3
triadic
#3673D3 #D33673 #73D336
tetradic
#3673D3 #D336C2 #D39636 #36D348
square
#3673D3 #D336C2 #D39636 #36D348
split-complementary
#3673D3 #D34836 #C2D336
monochromatic
#1A3D75 #2557A7 #3673D3 #6896DE #9AB9E9

Accessibility & contrast

On white

4.62
#3673D3 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.55
#3673D3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3673D3
4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3673D3#FFFFFF#000000##FFFFFF
##3673D31.004.624.554.62
#FFFFFF4.621.0021.001.00
#0000004.5521.001.0021.00
##FFFFFF4.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#417DD7
Deuteranopia (green-blind)
#1D6ED1
Tritanopia (blue-blind)
#008A99
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #3673d3;
/* rgb */ color: rgb(54, 115, 211);
/* oklch */ color: oklch(56.6% 0.161 259.2);
Tailwind
colors: {
  custom: {
    50: '#829ae1',
    500: '#3673d3',
    950: '#000000',
  },
}
SCSS
$custom: #3673d3;
$custom-light: #829ae1;
$custom-dark: #000000;
JSON
{
  "hex": "#3673d3",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 211
  },
  "hsl": {
    "h": 216.688,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.5661,
    "c": 0.16097,
    "h": 259.2
  },
  "luminance": 0.17749
}

Semantic roles & 50–950 ramp

primary
#3673D3
secondary
#D5BA90
accent
#A641E7
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3673D3

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

Preview Lab → · Contrast checker → · Palette generator →

#3673D3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva