#377ED0#377ED0

#377ED0 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.9% C 0.144 H 254.1°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX#377ED0
RGBrgb(55, 126, 208)
HSLhsl(212, 62%, 52%)
HSVhsv(212, 74%, 82%)
CMYKcmyk(73.6%, 39.4%, 0%, 18.4%)
CIE-LABlab(52.16, 5.66, -48.70)
CIE-LCHlch(52.16, 49.03, 276.63°)
OKLaboklab(58.87% -0.0396 -0.139)
OKLCHoklch(58.87% 0.144 254.1)
XYZxyz(20.4173, 20.2857, 62.5018)
Luminance0.2029 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377ED0 #D08937
analogous
#37CAD0 #377ED0 #3D37D0
triadic
#377ED0 #D0377E #7ED037
tetradic
#377ED0 #D037CA #D08937 #37D03D
square
#377ED0 #D037CA #D08937 #37D03D
split-complementary
#377ED0 #D03D37 #CAD037
monochromatic
#1B4372 #2660A3 #377ED0 #699EDC #9ABEE7

Accessibility & contrast

On white

4.15
#377ED0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.06
#377ED0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377ED0
5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377ED0#FFFFFF#000000##000000
##377ED01.004.155.065.06
#FFFFFF4.151.0021.0021.00
#0000005.0621.001.001.00
##0000005.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5784D3
Deuteranopia (green-blind)
#3F76CE
Tritanopia (blue-blind)
#00919D
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #377ed0;
/* rgb */ color: rgb(55, 126, 208);
/* oklch */ color: oklch(58.9% 0.144 254.1);
Tailwind
colors: {
  custom: {
    50: '#81a2df',
    500: '#377ed0',
    950: '#000000',
  },
}
SCSS
$custom: #377ed0;
$custom-light: #81a2df;
$custom-dark: #000000;
JSON
{
  "hex": "#377ed0",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 208
  },
  "hsl": {
    "h": 212.157,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58866,
    "c": 0.14448,
    "h": 254.1
  },
  "luminance": 0.20288
}

Semantic roles & 50–950 ramp

primary
#377ED0
secondary
#D3B490
accent
#9A43E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0F15
muted
#7D7E83

Preview Lab

Preview with #377ED0

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

Preview Lab → · Contrast checker → · Palette generator →

#377ED0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva