#377ACD#377ACD

#377ACD is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.8% C 0.145 H 255.3°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX#377ACD
RGBrgb(55, 122, 205)
HSLhsl(213, 60%, 51%)
HSVhsv(213, 73%, 80%)
CMYKcmyk(73.2%, 40.5%, 0%, 19.6%)
CIE-LABlab(50.85, 7.02, -49.09)
CIE-LCHlch(50.85, 49.59, 278.13°)
OKLaboklab(57.79% -0.0366 -0.1402)
OKLCHoklch(57.79% 0.145 255.3)
XYZxyz(19.5505, 19.1369, 60.4092)
Luminance0.1914 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377ACD #CD8A37
analogous
#37C5CD #377ACD #3F37CD
triadic
#377ACD #CD377A #7ACD37
tetradic
#377ACD #CD37C5 #CD8A37 #37CD3F
square
#377ACD #CD37C5 #CD8A37 #37CD3F
split-complementary
#377ACD #CD3F37 #C5CD37
monochromatic
#1C406E #285D9F #377ACD #689BD9 #99BBE5

Accessibility & contrast

On white

4.35
#377ACD on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.83
#377ACD on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377ACD
4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377ACD#FFFFFF#000000##000000
##377ACD1.004.354.834.83
#FFFFFF4.351.0021.0021.00
#0000004.8321.001.001.00
##0000004.8321.001.001.00

Color blindness preview

Protanopia (red-blind)
#5381D0
Deuteranopia (green-blind)
#3A73CB
Tritanopia (blue-blind)
#008D99
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #377acd;
/* rgb */ color: rgb(55, 122, 205);
/* oklch */ color: oklch(57.8% 0.145 255.3);
Tailwind
colors: {
  custom: {
    50: '#819fdd',
    500: '#377acd',
    950: '#000000',
  },
}
SCSS
$custom: #377acd;
$custom-light: #819fdd;
$custom-dark: #000000;
JSON
{
  "hex": "#377acd",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 205
  },
  "hsl": {
    "h": 213.2,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57791,
    "c": 0.14487,
    "h": 255.3
  },
  "luminance": 0.19139
}

Semantic roles & 50–950 ramp

primary
#377ACD
secondary
#D1B38F
accent
#9C45E3
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #377ACD

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

Preview Lab → · Contrast checker → · Palette generator →

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