#277BA1#277BA1

#277BA1 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.1% C 0.098 H 232.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX#277BA1
RGBrgb(39, 123, 161)
HSLhsl(199, 61%, 39%)
HSVhsv(199, 76%, 63%)
CMYKcmyk(75.8%, 23.6%, 0%, 36.9%)
CIE-LABlab(48.47, -11.66, -27.48)
CIE-LCHlch(48.47, 29.85, 247.02°)
OKLaboklab(55.07% -0.0596 -0.0773)
OKLCHoklch(55.07% 0.098 232.4)
XYZxyz(14.3501, 17.1688, 36.2689)
Luminance0.1717 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#277BA1 #A14D27
analogous
#27A18A #277BA1 #273EA1
triadic
#277BA1 #A1277B #7BA127
tetradic
#277BA1 #8A27A1 #A14D27 #3EA127
square
#277BA1 #8A27A1 #A14D27 #3EA127
split-complementary
#277BA1 #A1273E #A18A27
monochromatic
#0F303E #1B5570 #277BA1 #379FCE #68B7DA

Accessibility & contrast

On white

4.74
#277BA1 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.43
#277BA1 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277BA1
4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##277BA1#FFFFFF#000000##FFFFFF
##277BA11.004.744.434.74
#FFFFFF4.741.0021.001.00
#0000004.4321.001.0021.00
##FFFFFF4.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#687AA3
Deuteranopia (green-blind)
#586EA0
Tritanopia (blue-blind)
#008588
Achromatopsia (no color)
#737373

Design tokens & code

CSS
--color: #277ba1;
/* rgb */ color: rgb(39, 123, 161);
/* oklch */ color: oklch(55.1% 0.098 232.4);
Tailwind
colors: {
  custom: {
    50: '#73a1bd',
    500: '#277ba1',
    950: '#000000',
  },
}
SCSS
$custom: #277ba1;
$custom-light: #73a1bd;
$custom-dark: #000000;
JSON
{
  "hex": "#277ba1",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 161
  },
  "hsl": {
    "h": 198.689,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.55066,
    "c": 0.09762,
    "h": 232.4
  },
  "luminance": 0.1717
}

Semantic roles & 50–950 ramp

primary
#277BA1
secondary
#C08063
accent
#7644E4
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090E12
muted
#7B7E81

Preview Lab

Preview with #277BA1

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

Preview Lab → · Contrast checker → · Palette generator →

#277BA1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva