#3677DB#3677DB

#3677DB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.0% C 0.167 H 259.0°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX#3677DB
RGBrgb(54, 119, 219)
HSLhsl(216, 70%, 54%)
HSVhsv(216, 75%, 86%)
CMYKcmyk(75.3%, 45.7%, 0%, 14.1%)
CIE-LABlab(50.79, 13.89, -57.12)
CIE-LCHlch(50.79, 58.78, 283.67°)
OKLaboklab(58.01% -0.032 -0.1638)
OKLCHoklch(58.01% 0.167 259)
XYZxyz(20.8997, 19.0900, 69.5874)
Luminance0.1909 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3677DB #DB9A36
analogous
#36C9DB #3677DB #4736DB
triadic
#3677DB #DB3677 #77DB36
tetradic
#3677DB #DB36C9 #DB9A36 #36DB47
square
#3677DB #DB36C9 #DB9A36 #36DB47
split-complementary
#3677DB #DB4736 #C9DB36
monochromatic
#174080 #205AB4 #3677DB #6A9AE4 #9EBDEE

Accessibility & contrast

On white

4.36
#3677DB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.82
#3677DB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677DB
4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3677DB#FFFFFF#000000##000000
##3677DB1.004.364.824.82
#FFFFFF4.361.0021.0021.00
#0000004.8221.001.001.00
##0000004.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#4281DF
Deuteranopia (green-blind)
#1B72D9
Tritanopia (blue-blind)
#008F9E
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #3677db;
/* rgb */ color: rgb(54, 119, 219);
/* oklch */ color: oklch(58.0% 0.167 259.0);
Tailwind
colors: {
  custom: {
    50: '#839de7',
    500: '#3677db',
    950: '#000000',
  },
}
SCSS
$custom: #3677db;
$custom-light: #839de7;
$custom-dark: #000000;
JSON
{
  "hex": "#3677db",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 219
  },
  "hsl": {
    "h": 216.364,
    "s": 69.62,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58005,
    "c": 0.16691,
    "h": 259
  },
  "luminance": 0.19092
}

Semantic roles & 50–950 ramp

primary
#3677DB
secondary
#DABE93
accent
#A73BEC
background
#F8F9FE
surface
#F0F2FC
border
#CBCCD5
text
#0C0E16
muted
#7D7E84

Preview Lab

Preview with #3677DB

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

Preview Lab → · Contrast checker → · Palette generator →

#3677DB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva