#278DBA#278DBA

#278DBA is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.7% C 0.112 H 232.6°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX#278DBA
RGBrgb(39, 141, 186)
HSLhsl(198, 65%, 44%)
HSVhsv(198, 79%, 73%)
CMYKcmyk(79%, 24.2%, 0%, 27.1%)
CIE-LABlab(55.10, -12.97, -31.59)
CIE-LCHlch(55.10, 34.15, 247.68°)
OKLaboklab(60.71% -0.0681 -0.089)
OKLCHoklch(60.71% 0.112 232.6)
XYZxyz(19.2209, 23.0239, 49.8759)
Luminance0.2303 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#278DBA #BA5427
analogous
#27BA9E #278DBA #2744BA
triadic
#278DBA #BA278D #8DBA27
tetradic
#278DBA #9E27BA #BA5427 #44BA27
square
#278DBA #9E27BA #BA5427 #44BA27
split-complementary
#278DBA #BA2744 #BA9E27
monochromatic
#124055 #1C6787 #278DBA #46ABD8 #79C2E3

Accessibility & contrast

On white

3.75
#278DBA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.61
#278DBA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DBA
5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##278DBA#FFFFFF#000000##000000
##278DBA1.003.755.615.61
#FFFFFF3.751.0021.0021.00
#0000005.6121.001.001.00
##0000005.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#778CBC
Deuteranopia (green-blind)
#637EB9
Tritanopia (blue-blind)
#00999C
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #278dba;
/* rgb */ color: rgb(39, 141, 186);
/* oklch */ color: oklch(60.7% 0.112 232.6);
Tailwind
colors: {
  custom: {
    50: '#79aecf',
    500: '#278dba',
    950: '#000000',
  },
}
SCSS
$custom: #278dba;
$custom-light: #79aecf;
$custom-dark: #000000;
JSON
{
  "hex": "#278dba",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 186
  },
  "hsl": {
    "h": 198.367,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.60713,
    "c": 0.11211,
    "h": 232.6
  },
  "luminance": 0.23026
}

Semantic roles & 50–950 ramp

primary
#278DBA
secondary
#CB8D72
accent
#7340E8
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0A1013
muted
#7C7F82

Preview Lab

Preview with #278DBA

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

Preview Lab → · Contrast checker → · Palette generator →

#278DBA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva