#377FDF#377FDF

#377FDF is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 60.0% C 0.163 H 256.8°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX#377FDF
RGBrgb(55, 127, 223)
HSLhsl(214, 72%, 55%)
HSVhsv(214, 75%, 87%)
CMYKcmyk(75.3%, 43%, 0%, 12.5%)
CIE-LABlab(53.29, 10.53, -55.36)
CIE-LCHlch(53.29, 56.35, 280.77°)
OKLaboklab(60.02% -0.0372 -0.1585)
OKLCHoklch(60.02% 0.163 256.8)
XYZxyz(22.4793, 21.3161, 72.7274)
Luminance0.2132 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377FDF #DF9737
analogous
#37D3DF #377FDF #4337DF
triadic
#377FDF #DF377F #7FDF37
tetradic
#377FDF #DF37D3 #DF9737 #37DF43
square
#377FDF #DF37D3 #DF9737 #37DF43
split-complementary
#377FDF #DF4337 #D3DF37
monochromatic
#154686 #1E61BB #377FDF #6CA1E7 #A1C3F0

Accessibility & contrast

On white

3.99
#377FDF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.26
#377FDF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FDF
5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377FDF#FFFFFF#000000##000000
##377FDF1.003.995.265.26
#FFFFFF3.991.0021.0021.00
#0000005.2621.001.001.00
##0000005.2621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4F88E3
Deuteranopia (green-blind)
#2F78DD
Tritanopia (blue-blind)
#0096A4
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #377fdf;
/* rgb */ color: rgb(55, 127, 223);
/* oklch */ color: oklch(60.0% 0.163 256.8);
Tailwind
colors: {
  custom: {
    50: '#84a3e9',
    500: '#377fdf',
    950: '#000000',
  },
}
SCSS
$custom: #377fdf;
$custom-light: #84a3e9;
$custom-dark: #000000;
JSON
{
  "hex": "#377fdf",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 223
  },
  "hsl": {
    "h": 214.286,
    "s": 72.414,
    "l": 54.51
  },
  "oklch": {
    "l": 0.60024,
    "c": 0.16281,
    "h": 256.8
  },
  "luminance": 0.21319
}

Semantic roles & 50–950 ramp

primary
#377FDF
secondary
#DCBE95
accent
#A139EF
background
#F8FAFE
surface
#F0F3FD
border
#CBCDD5
text
#0C0F16
muted
#7D7F84

Preview Lab

Preview with #377FDF

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

Preview Lab → · Contrast checker → · Palette generator →

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