#3771C0#3771C0

#3771C0 is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 55.0% C 0.138 H 256.9°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX#3771C0
RGBrgb(55, 113, 192)
HSLhsl(215, 55%, 48%)
HSVhsv(215, 71%, 75%)
CMYKcmyk(71.4%, 41.1%, 0%, 24.7%)
CIE-LABlab(47.53, 7.83, -46.93)
CIE-LCHlch(47.53, 47.58, 279.48°)
OKLaboklab(54.97% -0.0312 -0.134)
OKLCHoklch(54.97% 0.138 256.9)
XYZxyz(16.9916, 16.4264, 52.1341)
Luminance0.1643 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3771C0 #C08637
analogous
#37B5C0 #3771C0 #4237C0
triadic
#3771C0 #C03771 #71C037
tetradic
#3771C0 #C037B5 #C08637 #37C042
square
#3771C0 #C037B5 #C08637 #37C042
split-complementary
#3771C0 #C04237 #B5C037
monochromatic
#1C3961 #295590 #3771C0 #6292D2 #92B3E0

Accessibility & contrast

On white

4.90
#3771C0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.29
#3771C0 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3771C0
4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3771C0#FFFFFF#000000##FFFFFF
##3771C01.004.904.294.90
#FFFFFF4.901.0021.001.00
#0000004.2921.001.0021.00
##FFFFFF4.901.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C78C3
Deuteranopia (green-blind)
#356BBE
Tritanopia (blue-blind)
#00838F
Achromatopsia (no color)
#717171

Design tokens & code

CSS
--color: #3771c0;
/* rgb */ color: rgb(55, 113, 192);
/* oklch */ color: oklch(55.0% 0.138 256.9);
Tailwind
colors: {
  custom: {
    50: '#7e99d3',
    500: '#3771c0',
    950: '#000000',
  },
}
SCSS
$custom: #3771c0;
$custom-light: #7e99d3;
$custom-dark: #000000;
JSON
{
  "hex": "#3771c0",
  "rgb": {
    "r": 55,
    "g": 113,
    "b": 192
  },
  "hsl": {
    "h": 214.599,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54973,
    "c": 0.13758,
    "h": 256.9
  },
  "luminance": 0.16428
}

Semantic roles & 50–950 ramp

primary
#3771C0
secondary
#CBAE88
accent
#9F49DF
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0D14
muted
#7C7E83

Preview Lab

Preview with #3771C0

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

Preview Lab → · Contrast checker → · Palette generator →

#3771C0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva