#3787C3#3787C3

#3787C3 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.120 H 244.6°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX#3787C3
RGBrgb(55, 135, 195)
HSLhsl(206, 56%, 49%)
HSVhsv(206, 72%, 76%)
CMYKcmyk(71.8%, 30.8%, 0%, 23.5%)
CIE-LABlab(54.11, -4.38, -38.23)
CIE-LCHlch(54.11, 38.48, 263.47°)
OKLaboklab(60.18% -0.0515 -0.1082)
OKLCHoklch(60.18% 0.12 244.6)
XYZxyz(20.0861, 22.0781, 54.8221)
Luminance0.2208 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3787C3 #C37337
analogous
#37C3B9 #3787C3 #3741C3
triadic
#3787C3 #C33787 #87C337
tetradic
#3787C3 #B937C3 #C37337 #41C337
square
#3787C3 #B937C3 #C37337 #41C337
split-complementary
#3787C3 #C33741 #C3B937
monochromatic
#1C4564 #2A6693 #3787C3 #64A4D3 #94C0E1

Accessibility & contrast

On white

3.88
#3787C3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.42
#3787C3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787C3
5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3787C3#FFFFFF#000000##000000
##3787C31.003.885.425.42
#FFFFFF3.881.0021.0021.00
#0000005.4221.001.001.00
##0000005.4221.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C89C6
Deuteranopia (green-blind)
#587BC2
Tritanopia (blue-blind)
#00969C
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #3787c3;
/* rgb */ color: rgb(55, 135, 195);
/* oklch */ color: oklch(60.2% 0.120 244.6);
Tailwind
colors: {
  custom: {
    50: '#7fa9d5',
    500: '#3787c3',
    950: '#000000',
  },
}
SCSS
$custom: #3787c3;
$custom-light: #7fa9d5;
$custom-dark: #000000;
JSON
{
  "hex": "#3787c3",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 195
  },
  "hsl": {
    "h": 205.714,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.60179,
    "c": 0.11984,
    "h": 244.6
  },
  "luminance": 0.2208
}

Semantic roles & 50–950 ramp

primary
#3787C3
secondary
#CCA68A
accent
#8949DF
background
#F8FAFD
surface
#EFF4FA
border
#CACED3
text
#0B0F14
muted
#7C7F83

Preview Lab

Preview with #3787C3

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

Preview Lab → · Contrast checker → · Palette generator →

#3787C3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva