#277DA4#277DA4

#277DA4 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.7% C 0.099 H 232.5°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX#277DA4
RGBrgb(39, 125, 164)
HSLhsl(199, 62%, 40%)
HSVhsv(199, 76%, 64%)
CMYKcmyk(76.2%, 23.8%, 0%, 35.7%)
CIE-LABlab(49.22, -11.73, -28.06)
CIE-LCHlch(49.22, 30.41, 247.31°)
OKLaboklab(55.71% -0.0605 -0.079)
OKLCHoklch(55.71% 0.099 232.5)
XYZxyz(14.8685, 17.7771, 37.7625)
Luminance0.1778 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#277DA4 #A44E27
analogous
#27A48D #277DA4 #273FA4
triadic
#277DA4 #A4277D #7DA427
tetradic
#277DA4 #8D27A4 #A44E27 #3FA427
square
#277DA4 #8D27A4 #A44E27 #3FA427
split-complementary
#277DA4 #A4273F #A48D27
monochromatic
#0F3241 #1B5773 #277DA4 #38A1D0 #6AB8DC

Accessibility & contrast

On white

4.61
#277DA4 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.56
#277DA4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277DA4
4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##277DA4#FFFFFF#000000##FFFFFF
##277DA41.004.614.564.61
#FFFFFF4.611.0021.001.00
#0000004.5621.001.0021.00
##FFFFFF4.611.0021.001.00

Color blindness preview

Protanopia (red-blind)
#6A7CA6
Deuteranopia (green-blind)
#5970A3
Tritanopia (blue-blind)
#00878A
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #277da4;
/* rgb */ color: rgb(39, 125, 164);
/* oklch */ color: oklch(55.7% 0.099 232.5);
Tailwind
colors: {
  custom: {
    50: '#74a2bf',
    500: '#277da4',
    950: '#000000',
  },
}
SCSS
$custom: #277da4;
$custom-light: #74a2bf;
$custom-dark: #000000;
JSON
{
  "hex": "#277da4",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 198.72,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.5571,
    "c": 0.09949,
    "h": 232.5
  },
  "luminance": 0.17779
}

Semantic roles & 50–950 ramp

primary
#277DA4
secondary
#C28265
accent
#7643E5
background
#F7F9FB
surface
#EEF2F7
border
#C9CCD0
text
#090F12
muted
#7B7E81

Preview Lab

Preview with #277DA4

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

Preview Lab → · Contrast checker → · Palette generator →

#277DA4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva