#377DC5#377DC5

#377DC5 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.131 H 251.7°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX#377DC5
RGBrgb(55, 125, 197)
HSLhsl(210, 56%, 49%)
HSVhsv(210, 72%, 77%)
CMYKcmyk(72.1%, 36.5%, 0%, 22.7%)
CIE-LABlab(51.28, 2.28, -43.84)
CIE-LCHlch(51.28, 43.90, 272.98°)
OKLaboklab(57.99% -0.0413 -0.1247)
OKLCHoklch(57.99% 0.131 251.7)
XYZxyz(18.9834, 19.5086, 55.5776)
Luminance0.1951 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377DC5 #C57F37
analogous
#37C4C5 #377DC5 #3837C5
triadic
#377DC5 #C5377D #7DC537
tetradic
#377DC5 #C537C4 #C57F37 #37C538
square
#377DC5 #C537C4 #C57F37 #37C538
split-complementary
#377DC5 #C53837 #C4C537
monochromatic
#1C4065 #2A5F95 #377DC5 #659CD4 #95BBE1

Accessibility & contrast

On white

4.28
#377DC5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.90
#377DC5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DC5
4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377DC5#FFFFFF#000000##000000
##377DC51.004.284.904.90
#FFFFFF4.281.0021.0021.00
#0000004.9021.001.001.00
##0000004.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#5C81C8
Deuteranopia (green-blind)
#4774C4
Tritanopia (blue-blind)
#008E97
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #377dc5;
/* rgb */ color: rgb(55, 125, 197);
/* oklch */ color: oklch(58.0% 0.131 251.7);
Tailwind
colors: {
  custom: {
    50: '#7fa2d7',
    500: '#377dc5',
    950: '#000000',
  },
}
SCSS
$custom: #377dc5;
$custom-light: #7fa2d7;
$custom-dark: #000000;
JSON
{
  "hex": "#377dc5",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 197
  },
  "hsl": {
    "h": 210.423,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57985,
    "c": 0.13141,
    "h": 251.7
  },
  "luminance": 0.19511
}

Semantic roles & 50–950 ramp

primary
#377DC5
secondary
#CDAC8B
accent
#9548E0
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0B0F14
muted
#7C7E83

Preview Lab

Preview with #377DC5

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

Preview Lab → · Contrast checker → · Palette generator →

#377DC5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva