#278AA5#278AA5

#278AA5 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.0% C 0.096 H 220.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX#278AA5
RGBrgb(39, 138, 165)
HSLhsl(193, 62%, 40%)
HSVhsv(193, 76%, 65%)
CMYKcmyk(76.4%, 16.4%, 0%, 35.3%)
CIE-LABlab(53.30, -18.59, -22.34)
CIE-LCHlch(53.30, 29.06, 230.24°)
OKLaboklab(58.99% -0.0731 -0.0625)
OKLCHoklch(58.99% 0.096 220.5)
XYZxyz(16.7139, 21.3229, 38.8249)
Luminance0.2132 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#278AA5 #A54227
analogous
#27A581 #278AA5 #274BA5
triadic
#278AA5 #A5278A #8AA527
tetradic
#278AA5 #8127A5 #A54227 #4BA527
square
#278AA5 #8127A5 #A54227 #4BA527
split-complementary
#278AA5 #A5274B #A58127
monochromatic
#103742 #1B6174 #278AA5 #39B0D0 #6AC4DC

Accessibility & contrast

On white

3.99
#278AA5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.27
#278AA5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278AA5
5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##278AA5#FFFFFF#000000##000000
##278AA51.003.995.275.27
#FFFFFF3.991.0021.0021.00
#0000005.2721.001.001.00
##0000005.2721.001.001.00

Color blindness preview

Protanopia (red-blind)
#7A86A6
Deuteranopia (green-blind)
#697AA5
Tritanopia (blue-blind)
#009393
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #278aa5;
/* rgb */ color: rgb(39, 138, 165);
/* oklch */ color: oklch(59.0% 0.096 220.5);
Tailwind
colors: {
  custom: {
    50: '#75acbf',
    500: '#278aa5',
    950: '#000000',
  },
}
SCSS
$custom: #278aa5;
$custom-light: #75acbf;
$custom-dark: #000000;
JSON
{
  "hex": "#278aa5",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 165
  },
  "hsl": {
    "h": 192.857,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.58987,
    "c": 0.09619,
    "h": 220.5
  },
  "luminance": 0.21325
}

Semantic roles & 50–950 ramp

primary
#278AA5
secondary
#C27966
accent
#6643E5
background
#F7FAFB
surface
#EEF4F7
border
#C9CED0
text
#0A1012
muted
#7C7F81

Preview Lab

Preview with #278AA5

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

Preview Lab → · Contrast checker → · Palette generator →

#278AA5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva