#277FA3#277FA3

#277FA3 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.2% C 0.098 H 229.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX#277FA3
RGBrgb(39, 127, 163)
HSLhsl(197, 61%, 40%)
HSVhsv(197, 76%, 64%)
CMYKcmyk(76.1%, 22.1%, 0%, 36.1%)
CIE-LABlab(49.80, -13.22, -26.58)
CIE-LCHlch(49.80, 29.69, 243.56°)
OKLaboklab(56.16% -0.0629 -0.0747)
OKLCHoklch(56.16% 0.098 229.9)
XYZxyz(15.0342, 18.2526, 37.3740)
Luminance0.1825 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#277FA3 #A34B27
analogous
#27A389 #277FA3 #2741A3
triadic
#277FA3 #A3277F #7FA327
tetradic
#277FA3 #8927A3 #A34B27 #41A327
square
#277FA3 #8927A3 #A34B27 #41A327
split-complementary
#277FA3 #A32741 #A38927
monochromatic
#0F3240 #1B5972 #277FA3 #38A3CF #69BADB

Accessibility & contrast

On white

4.52
#277FA3 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.65
#277FA3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FA3
4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##277FA3#FFFFFF#000000##000000
##277FA31.004.524.654.65
#FFFFFF4.521.0021.0021.00
#0000004.6521.001.001.00
##0000004.6521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6D7DA5
Deuteranopia (green-blind)
#5C71A2
Tritanopia (blue-blind)
#00898B
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #277fa3;
/* rgb */ color: rgb(39, 127, 163);
/* oklch */ color: oklch(56.2% 0.098 229.9);
Tailwind
colors: {
  custom: {
    50: '#74a4be',
    500: '#277fa3',
    950: '#000000',
  },
}
SCSS
$custom: #277fa3;
$custom-light: #74a4be;
$custom-dark: #000000;
JSON
{
  "hex": "#277fa3",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 163
  },
  "hsl": {
    "h": 197.419,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.56156,
    "c": 0.09764,
    "h": 229.9
  },
  "luminance": 0.18254
}

Semantic roles & 50–950 ramp

primary
#277FA3
secondary
#C17F64
accent
#7243E4
background
#F7FAFB
surface
#EEF4F6
border
#C9CED0
text
#090F12
muted
#7B7F81

Preview Lab

Preview with #277FA3

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

Preview Lab → · Contrast checker → · Palette generator →

#277FA3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva