#278CA5#278CA5

#278CA5 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.096 H 218.5°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#278CA5
RGB	rgb(39, 140, 165)
HSL	hsl(192, 62%, 40%)
HSV	hsv(192, 76%, 65%)
CMYK	cmyk(76.4%, 15.2%, 0%, 35.3%)
CIE-LAB	lab(53.92, -19.66, -21.38)
CIE-LCH	lch(53.92, 29.05, 227.41°)
OKLab	oklab(59.49% -0.0751 -0.0597)
OKLCH	oklch(59.49% 0.096 218.5)
XYZ	xyz(17.0035, 21.9021, 38.9214)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278CA5 #A54027

analogous

#27A57F #278CA5 #274DA5

triadic

#278CA5 #A5278C #8CA527

tetradic

#278CA5 #7F27A5 #A54027 #4DA527

square

#278CA5 #7F27A5 #A54027 #4DA527

split-complementary

#278CA5 #A5274D #A57F27

monochromatic

#103842 #1B6274 #278CA5 #39B2D0 #6AC5DC

Accessibility & contrast

On white

3.90

#278CA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#278CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278CA5

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278CA5	#FFFFFF	#000000	##000000
##278CA5	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C88A6

Deuteranopia (green-blind)

#6B7CA5

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278ca5;
/* rgb */ color: rgb(39, 140, 165);
/* oklch */ color: oklch(59.5% 0.096 218.5);

Tailwind

colors: {
  custom: {
    50: '#75adbf',
    500: '#278ca5',
    950: '#000000',
  },
}

SCSS

$custom: #278ca5;
$custom-light: #75adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#278ca5",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 165
  },
  "hsl": {
    "h": 191.905,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.59487,
    "c": 0.096,
    "h": 218.5
  },
  "luminance": 0.21904
}

Semantic roles & 50–950 ramp

primary

#278CA5

secondary

#C27866

accent

#6343E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278CA5

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

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