#278EA6#278EA6

#278EA6 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.0% C 0.096 H 217.3°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#278EA6
RGB	rgb(39, 142, 166)
HSL	hsl(191, 62%, 40%)
HSV	hsv(191, 77%, 65%)
CMYK	cmyk(76.5%, 14.5%, 0%, 34.9%)
CIE-LAB	lab(54.58, -20.39, -20.95)
CIE-LCH	lch(54.58, 29.23, 225.77°)
OKLab	oklab(60.03% -0.0767 -0.0585)
OKLCH	oklch(60.03% 0.096 217.3)
XYZ	xyz(17.3897, 22.5284, 39.5009)
Luminance	0.2253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EA6 #A63F27

analogous

#27A67F #278EA6 #274EA6

triadic

#278EA6 #A6278E #8EA627

tetradic

#278EA6 #7F27A6 #A63F27 #4EA627

square

#278EA6 #7F27A6 #A63F27 #4EA627

split-complementary

#278EA6 #A6274E #A67F27

monochromatic

#103943 #1B6474 #278EA6 #3AB4D1 #6BC7DC

Accessibility & contrast

On white

3.81

#278EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#278EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EA6

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EA6	#FFFFFF	#000000	##000000
##278EA6	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA7

Deuteranopia (green-blind)

#6D7DA6

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #278ea6;
/* rgb */ color: rgb(39, 142, 166);
/* oklch */ color: oklch(60.0% 0.096 217.3);

Tailwind

colors: {
  custom: {
    50: '#75afc0',
    500: '#278ea6',
    950: '#000000',
  },
}

SCSS

$custom: #278ea6;
$custom-light: #75afc0;
$custom-dark: #000000;

JSON

{
  "hex": "#278ea6",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 166
  },
  "hsl": {
    "h": 191.339,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.60031,
    "c": 0.09649,
    "h": 217.3
  },
  "luminance": 0.22531
}

Semantic roles & 50–950 ramp

primary

#278EA6

secondary

#C37866

accent

#6143E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278EA6

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

Preview Lab → · Contrast checker → · Palette generator →