#278BA1#278BA1

#278BA1 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.1% C 0.094 H 216.1°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#278BA1
RGB	rgb(39, 139, 161)
HSL	hsl(191, 61%, 39%)
HSV	hsv(191, 76%, 63%)
CMYK	cmyk(75.8%, 13.7%, 0%, 36.9%)
CIE-LAB	lab(53.46, -20.47, -19.79)
CIE-LCH	lch(53.46, 28.47, 224.04°)
OKLab	oklab(59.06% -0.0758 -0.0552)
OKLCH	oklch(59.06% 0.094 216.1)
XYZ	xyz(16.4996, 21.4678, 36.9854)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278BA1 #A13D27

analogous

#27A17A #278BA1 #274EA1

triadic

#278BA1 #A1278B #8BA127

tetradic

#278BA1 #7A27A1 #A13D27 #4EA127

square

#278BA1 #7A27A1 #A13D27 #4EA127

split-complementary

#278BA1 #A1274E #A17A27

monochromatic

#0F363E #1B6070 #278BA1 #37B3CE #68C6DA

Accessibility & contrast

On white

3.97

#278BA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#278BA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278BA1

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278BA1	#FFFFFF	#000000	##000000
##278BA1	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C87A2

Deuteranopia (green-blind)

#6B7AA1

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278ba1;
/* rgb */ color: rgb(39, 139, 161);
/* oklch */ color: oklch(59.1% 0.094 216.1);

Tailwind

colors: {
  custom: {
    50: '#74adbc',
    500: '#278ba1',
    950: '#000000',
  },
}

SCSS

$custom: #278ba1;
$custom-light: #74adbc;
$custom-dark: #000000;

JSON

{
  "hex": "#278ba1",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 161
  },
  "hsl": {
    "h": 190.82,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59062,
    "c": 0.09375,
    "h": 216.1
  },
  "luminance": 0.2147
}

Semantic roles & 50–950 ramp

primary

#278BA1

secondary

#C07463

accent

#6144E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278BA1

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

Preview Lab → · Contrast checker → · Palette generator →