#377DB8#377DB8

#377DB8 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.2% C 0.115 H 247.0°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX#377DB8
RGBrgb(55, 125, 184)
HSLhsl(207, 54%, 47%)
HSVhsv(207, 70%, 72%)
CMYKcmyk(70.1%, 32.1%, 0%, 27.8%)
CIE-LABlab(50.61, -2.37, -37.43)
CIE-LCHlch(50.61, 37.51, 266.37°)
OKLaboklab(57.25% -0.0449 -0.106)
OKLCHoklch(57.25% 0.115 247)
XYZxyz(17.5576, 18.9382, 48.0682)
Luminance0.1894 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377DB8 #B87237
analogous
#37B8B3 #377DB8 #373CB8
triadic
#377DB8 #B8377D #7DB837
tetradic
#377DB8 #B337B8 #B87237 #3CB837
square
#377DB8 #B337B8 #B87237 #3CB837
split-complementary
#377DB8 #B8373C #B8B337
monochromatic
#1B3D5A #295D89 #377DB8 #5D9BCF #8DB8DD

Accessibility & contrast

On white

4.39
#377DB8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.79
#377DB8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DB8
4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377DB8#FFFFFF#000000##000000
##377DB81.004.394.794.79
#FFFFFF4.391.0021.0021.00
#0000004.7921.001.001.00
##0000004.7921.001.001.00

Color blindness preview

Protanopia (red-blind)
#637FBB
Deuteranopia (green-blind)
#5173B7
Tritanopia (blue-blind)
#008B92
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #377db8;
/* rgb */ color: rgb(55, 125, 184);
/* oklch */ color: oklch(57.2% 0.115 247.0);
Tailwind
colors: {
  custom: {
    50: '#7da2cd',
    500: '#377db8',
    950: '#000000',
  },
}
SCSS
$custom: #377db8;
$custom-light: #7da2cd;
$custom-dark: #000000;
JSON
{
  "hex": "#377db8",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 207.442,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57248,
    "c": 0.11514,
    "h": 247
  },
  "luminance": 0.1894
}

Semantic roles & 50–950 ramp

primary
#377DB8
secondary
#C7A384
accent
#8E4ADD
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0F13
muted
#7C7E82

Preview Lab

Preview with #377DB8

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

Preview Lab → · Contrast checker → · Palette generator →

#377DB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva