#278CA1#278CA1

#278CA1 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.3% C 0.094 H 215.1°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#278CA1
RGB	rgb(39, 140, 161)
HSL	hsl(190, 61%, 39%)
HSV	hsv(190, 76%, 63%)
CMYK	cmyk(75.8%, 13%, 0%, 36.9%)
CIE-LAB	lab(53.77, -20.99, -19.31)
CIE-LCH	lch(53.77, 28.53, 222.61°)
OKLab	oklab(59.31% -0.0768 -0.0539)
OKLCH	oklch(59.31% 0.094 215.1)
XYZ	xyz(16.6451, 21.7587, 37.0339)
Luminance	0.2176 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278CA1 #A13C27

analogous

#27A179 #278CA1 #274FA1

triadic

#278CA1 #A1278C #8CA127

tetradic

#278CA1 #7927A1 #A13C27 #4FA127

square

#278CA1 #7927A1 #A13C27 #4FA127

split-complementary

#278CA1 #A1274F #A17927

monochromatic

#0F363E #1B6170 #278CA1 #37B4CE #68C7DA

Accessibility & contrast

On white

3.92

#278CA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#278CA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278CA1

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278CA1	#FFFFFF	#000000	##000000
##278CA1	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D87A2

Deuteranopia (green-blind)

#6D7BA1

Tritanopia (blue-blind)

#009493

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278ca1;
/* rgb */ color: rgb(39, 140, 161);
/* oklch */ color: oklch(59.3% 0.094 215.1);

Tailwind

colors: {
  custom: {
    50: '#75aebc',
    500: '#278ca1',
    950: '#000000',
  },
}

SCSS

$custom: #278ca1;
$custom-light: #75aebc;
$custom-dark: #000000;

JSON

{
  "hex": "#278ca1",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 161
  },
  "hsl": {
    "h": 190.328,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59313,
    "c": 0.09379,
    "h": 215.1
  },
  "luminance": 0.21761
}

Semantic roles & 50–950 ramp

primary

#278CA1

secondary

#C07363

accent

#5F44E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278CA1

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

Preview Lab → · Contrast checker → · Palette generator →