#3655C9#3655C9

#3655C9 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.7% C 0.184 H 267.7°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX#3655C9
RGBrgb(54, 85, 201)
HSLhsl(227, 58%, 50%)
HSVhsv(227, 73%, 79%)
CMYKcmyk(73.1%, 57.7%, 0%, 21.2%)
CIE-LABlab(40.40, 28.92, -63.62)
CIE-LCHlch(40.40, 69.88, 294.45°)
OKLaboklab(49.72% -0.0073 -0.1835)
OKLCHoklch(49.72% 0.184 267.7)
XYZxyz(15.3088, 11.4967, 56.6593)
Luminance0.1150 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3655C9 #C9AA36
analogous
#369EC9 #3655C9 #6136C9
triadic
#3655C9 #C93655 #55C936
tetradic
#3655C9 #C9369E #C9AA36 #36C961
square
#3655C9 #C9369E #C9AA36 #36C961
split-complementary
#3655C9 #C96136 #9EC936
monochromatic
#1C2C69 #294199 #3655C9 #667ED6 #96A7E3

Accessibility & contrast

On white

6.36
#3655C9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.30
#3655C9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3655C9
6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3655C9#FFFFFF#000000##FFFFFF
##3655C91.006.363.306.36
#FFFFFF6.361.0021.001.00
#0000003.3021.001.0021.00
##FFFFFF6.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0066CD
Deuteranopia (green-blind)
#0059C7
Tritanopia (blue-blind)
#007287
Achromatopsia (no color)
#5F5F5F

Design tokens & code

CSS
--color: #3655c9;
/* rgb */ color: rgb(54, 85, 201);
/* oklch */ color: oklch(49.7% 0.184 267.7);
Tailwind
colors: {
  custom: {
    50: '#8184da',
    500: '#3655c9',
    950: '#000000',
  },
}
SCSS
$custom: #3655c9;
$custom-light: #8184da;
$custom-dark: #000000;
JSON
{
  "hex": "#3655c9",
  "rgb": {
    "r": 54,
    "g": 85,
    "b": 201
  },
  "hsl": {
    "h": 227.347,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.49716,
    "c": 0.18368,
    "h": 267.7
  },
  "luminance": 0.11498
}

Semantic roles & 50–950 ramp

primary
#3655C9
secondary
#CEC08C
accent
#C047E1
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0A15
muted
#7D7C83

Preview Lab

Preview with #3655C9

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

Preview Lab → · Contrast checker → · Palette generator →

#3655C9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva