#278BA4#278BA4

#278BA4 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.2% C 0.095 H 218.7°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#278BA4
RGB	rgb(39, 139, 164)
HSL	hsl(192, 62%, 40%)
HSV	hsv(192, 76%, 64%)
CMYK	cmyk(76.2%, 15.2%, 0%, 35.7%)
CIE-LAB	lab(53.57, -19.46, -21.34)
CIE-LCH	lch(53.57, 28.89, 227.64°)
OKLab	oklab(59.19% -0.0745 -0.0596)
OKLCH	oklch(59.19% 0.095 218.7)
XYZ	xyz(16.7673, 21.5749, 38.3954)
Luminance	0.2158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278BA4 #A44027

analogous

#27A47F #278BA4 #274DA4

triadic

#278BA4 #A4278B #8BA427

tetradic

#278BA4 #7F27A4 #A44027 #4DA427

square

#278BA4 #7F27A4 #A44027 #4DA427

split-complementary

#278BA4 #A4274D #A47F27

monochromatic

#0F3741 #1B6173 #278BA4 #38B2D0 #6AC5DC

Accessibility & contrast

On white

3.95

#278BA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#278BA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278BA4

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278BA4	#FFFFFF	#000000	##000000
##278BA4	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B87A5

Deuteranopia (green-blind)

#6A7BA4

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278ba4;
/* rgb */ color: rgb(39, 139, 164);
/* oklch */ color: oklch(59.2% 0.095 218.7);

Tailwind

colors: {
  custom: {
    50: '#75adbf',
    500: '#278ba4',
    950: '#000000',
  },
}

SCSS

$custom: #278ba4;
$custom-light: #75adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#278ba4",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 164
  },
  "hsl": {
    "h": 192,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.59193,
    "c": 0.09546,
    "h": 218.7
  },
  "luminance": 0.21577
}

Semantic roles & 50–950 ramp

primary

#278BA4

secondary

#C27865

accent

#6343E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278BA4

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

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