#278EB2#278EB2

#278EB2 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.105 H 226.6°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX#278EB2
RGBrgb(39, 142, 178)
HSLhsl(196, 64%, 43%)
HSVhsv(196, 78%, 70%)
CMYKcmyk(78.1%, 20.2%, 0%, 30.2%)
CIE-LABlab(55.06, -16.31, -27.08)
CIE-LCHlch(55.06, 31.62, 238.94°)
OKLaboklab(60.57% -0.072 -0.076)
OKLCHoklch(60.57% 0.105 226.6)
XYZxyz(18.5423, 22.9894, 45.5710)
Luminance0.2299 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#278EB2 #B24B27
analogous
#27B291 #278EB2 #2748B2
triadic
#278EB2 #B2278E #8EB227
tetradic
#278EB2 #9127B2 #B24B27 #48B227
square
#278EB2 #9127B2 #B24B27 #48B227
split-complementary
#278EB2 #B22748 #B29127
monochromatic
#113E4E #1C6680 #278EB2 #41AFD5 #73C4E0

Accessibility & contrast

On white

3.75
#278EB2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.60
#278EB2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EB2
5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##278EB2#FFFFFF#000000##000000
##278EB21.003.755.605.60
#FFFFFF3.751.0021.0021.00
#0000005.6021.001.001.00
##0000005.6021.001.001.00

Color blindness preview

Protanopia (red-blind)
#7B8BB4
Deuteranopia (green-blind)
#687EB2
Tritanopia (blue-blind)
#00989A
Achromatopsia (no color)
#848484

Design tokens & code

CSS
--color: #278eb2;
/* rgb */ color: rgb(39, 142, 178);
/* oklch */ color: oklch(60.6% 0.105 226.6);
Tailwind
colors: {
  custom: {
    50: '#77afc9',
    500: '#278eb2',
    950: '#000000',
  },
}
SCSS
$custom: #278eb2;
$custom-light: #77afc9;
$custom-dark: #000000;
JSON
{
  "hex": "#278eb2",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 178
  },
  "hsl": {
    "h": 195.54,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60573,
    "c": 0.10473,
    "h": 226.6
  },
  "luminance": 0.22992
}

Semantic roles & 50–950 ramp

primary
#278EB2
secondary
#C8856D
accent
#6C41E7
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#0A1013
muted
#7C7F82

Preview Lab

Preview with #278EB2

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

Preview Lab → · Contrast checker → · Palette generator →

#278EB2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva