#377EB8#377EB8

#377EB8 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.114 H 246.3°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX#377EB8
RGBrgb(55, 126, 184)
HSLhsl(207, 54%, 47%)
HSVhsv(207, 70%, 72%)
CMYKcmyk(70.1%, 31.5%, 0%, 27.8%)
CIE-LABlab(50.91, -2.97, -36.97)
CIE-LCHlch(50.91, 37.09, 265.41°)
OKLaboklab(57.48% -0.0459 -0.1046)
OKLCHoklch(57.48% 0.114 246.3)
XYZxyz(17.6849, 19.1927, 48.1106)
Luminance0.1920 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377EB8 #B87137
analogous
#37B8B2 #377EB8 #373DB8
triadic
#377EB8 #B8377E #7EB837
tetradic
#377EB8 #B237B8 #B87137 #3DB837
square
#377EB8 #B237B8 #B87137 #3DB837
split-complementary
#377EB8 #B8373D #B8B237
monochromatic
#1B3D5A #295E89 #377EB8 #5D9CCF #8DB9DD

Accessibility & contrast

On white

4.34
#377EB8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.84
#377EB8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EB8
4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377EB8#FFFFFF#000000##000000
##377EB81.004.344.844.84
#FFFFFF4.341.0021.0021.00
#0000004.8421.001.001.00
##0000004.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#6480BB
Deuteranopia (green-blind)
#5274B7
Tritanopia (blue-blind)
#008C93
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #377eb8;
/* rgb */ color: rgb(55, 126, 184);
/* oklch */ color: oklch(57.5% 0.114 246.3);
Tailwind
colors: {
  custom: {
    50: '#7da3cd',
    500: '#377eb8',
    950: '#000000',
  },
}
SCSS
$custom: #377eb8;
$custom-light: #7da3cd;
$custom-dark: #000000;
JSON
{
  "hex": "#377eb8",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 184
  },
  "hsl": {
    "h": 206.977,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57482,
    "c": 0.11427,
    "h": 246.3
  },
  "luminance": 0.19195
}

Semantic roles & 50–950 ramp

primary
#377EB8
secondary
#C7A284
accent
#8C4ADD
background
#F8FAFC
surface
#EFF3F9
border
#CACDD2
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #377EB8

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

Preview Lab → · Contrast checker → · Palette generator →

#377EB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva