#277DC4#277DC4

#277DC4 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.135 H 248.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX#277DC4
RGBrgb(39, 125, 196)
HSLhsl(207, 67%, 46%)
HSVhsv(207, 80%, 77%)
CMYKcmyk(80.1%, 36.2%, 0%, 23.1%)
CIE-LABlab(50.78, -0.03, -44.08)
CIE-LCHlch(50.78, 44.08, 269.96°)
OKLaboklab(57.46% -0.0504 -0.1256)
OKLCHoklch(57.46% 0.135 248.1)
XYZxyz(18.1303, 19.0819, 54.9415)
Luminance0.1908 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#277DC4 #C46E27
analogous
#27C4BC #277DC4 #272EC4
triadic
#277DC4 #C4277D #7DC427
tetradic
#277DC4 #BC27C4 #C46E27 #2EC427
square
#277DC4 #BC27C4 #C46E27 #2EC427
split-complementary
#277DC4 #C4272E #C4BC27
monochromatic
#133C5E #1D5C91 #277DC4 #4D9BDC #80B8E6

Accessibility & contrast

On white

4.36
#277DC4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.82
#277DC4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277DC4
4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##277DC4#FFFFFF#000000##000000
##277DC41.004.364.824.82
#FFFFFF4.361.0021.0021.00
#0000004.8221.001.001.00
##0000004.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#5C81C7
Deuteranopia (green-blind)
#4472C3
Tritanopia (blue-blind)
#008E97
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #277dc4;
/* rgb */ color: rgb(39, 125, 196);
/* oklch */ color: oklch(57.5% 0.135 248.1);
Tailwind
colors: {
  custom: {
    50: '#7aa2d6',
    500: '#277dc4',
    950: '#000000',
  },
}
SCSS
$custom: #277dc4;
$custom-light: #7aa2d6;
$custom-dark: #000000;
JSON
{
  "hex": "#277dc4",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 207.134,
    "s": 66.809,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57455,
    "c": 0.13534,
    "h": 248.1
  },
  "luminance": 0.19084
}

Semantic roles & 50–950 ramp

primary
#277DC4
secondary
#CE9F79
accent
#8C3EEA
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0F14
muted
#7C7E83

Preview Lab

Preview with #277DC4

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

Preview Lab → · Contrast checker → · Palette generator →

#277DC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva