#377AC0#377AC0

#377AC0 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.0% C 0.128 H 251.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX#377AC0
RGBrgb(55, 122, 192)
HSLhsl(211, 55%, 48%)
HSVhsv(211, 71%, 75%)
CMYKcmyk(71.4%, 36.5%, 0%, 24.7%)
CIE-LABlab(50.14, 2.30, -42.78)
CIE-LCHlch(50.14, 42.84, 273.07°)
OKLaboklab(57.01% -0.0398 -0.1217)
OKLCHoklch(57.01% 0.128 251.9)
XYZxyz(18.0460, 18.5351, 52.4855)
Luminance0.1854 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377AC0 #C07D37
analogous
#37BEC0 #377AC0 #3837C0
triadic
#377AC0 #C0377A #7AC037
tetradic
#377AC0 #C037BE #C07D37 #37C038
square
#377AC0 #C037BE #C07D37 #37C038
split-complementary
#377AC0 #C03837 #BEC037
monochromatic
#1C3E61 #295C90 #377AC0 #6299D2 #92B8E0

Accessibility & contrast

On white

4.46
#377AC0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.71
#377AC0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC0
4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377AC0#FFFFFF#000000##000000
##377AC01.004.464.714.71
#FFFFFF4.461.0021.0021.00
#0000004.7121.001.001.00
##0000004.7121.001.001.00

Color blindness preview

Protanopia (red-blind)
#5A7EC3
Deuteranopia (green-blind)
#4671BF
Tritanopia (blue-blind)
#008A94
Achromatopsia (no color)
#777777

Design tokens & code

CSS
--color: #377ac0;
/* rgb */ color: rgb(55, 122, 192);
/* oklch */ color: oklch(57.0% 0.128 251.9);
Tailwind
colors: {
  custom: {
    50: '#7ea0d3',
    500: '#377ac0',
    950: '#000000',
  },
}
SCSS
$custom: #377ac0;
$custom-light: #7ea0d3;
$custom-dark: #000000;
JSON
{
  "hex": "#377ac0",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 192
  },
  "hsl": {
    "h": 210.657,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.57008,
    "c": 0.12801,
    "h": 251.9
  },
  "luminance": 0.18537
}

Semantic roles & 50–950 ramp

primary
#377AC0
secondary
#CBAA88
accent
#9649DF
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #377AC0

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

Preview Lab → · Contrast checker → · Palette generator →

#377AC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva