#278EA5#278EA5

#278EA5 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.0% C 0.096 H 216.5°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#278EA5
RGB	rgb(39, 142, 165)
HSL	hsl(191, 62%, 40%)
HSV	hsv(191, 76%, 65%)
CMYK	cmyk(76.4%, 13.9%, 0%, 35.3%)
CIE-LAB	lab(54.55, -20.72, -20.43)
CIE-LCH	lch(54.55, 29.10, 224.59°)
OKLab	oklab(59.99% -0.0771 -0.057)
OKLCH	oklch(59.99% 0.096 216.5)
XYZ	xyz(17.2983, 22.4919, 39.0197)
Luminance	0.2249 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EA5 #A53E27

analogous

#27A57D #278EA5 #274FA5

triadic

#278EA5 #A5278E #8EA527

tetradic

#278EA5 #7D27A5 #A53E27 #4FA527

square

#278EA5 #7D27A5 #A53E27 #4FA527

split-complementary

#278EA5 #A5274F #A57D27

monochromatic

#103942 #1B6374 #278EA5 #39B5D0 #6AC7DC

Accessibility & contrast

On white

3.82

#278EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#278EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EA5

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EA5	#FFFFFF	#000000	##000000
##278EA5	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8AA6

Deuteranopia (green-blind)

#6E7DA5

Tritanopia (blue-blind)

#009695

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #278ea5;
/* rgb */ color: rgb(39, 142, 165);
/* oklch */ color: oklch(60.0% 0.096 216.5);

Tailwind

colors: {
  custom: {
    50: '#75afbf',
    500: '#278ea5',
    950: '#000000',
  },
}

SCSS

$custom: #278ea5;
$custom-light: #75afbf;
$custom-dark: #000000;

JSON

{
  "hex": "#278ea5",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 165
  },
  "hsl": {
    "h": 190.952,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.59987,
    "c": 0.09594,
    "h": 216.5
  },
  "luminance": 0.22494
}

Semantic roles & 50–950 ramp

primary

#278EA5

secondary

#C27666

accent

#6043E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278EA5

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

Preview Lab → · Contrast checker → · Palette generator →