#2778BA#2778BA

#2778BA is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 55.7% C 0.128 H 247.6°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#2778BA
RGB	rgb(39, 120, 186)
HSL	hsl(207, 65%, 44%)
HSV	hsv(207, 79%, 73%)
CMYK	cmyk(79%, 35.5%, 0%, 27.1%)
CIE-LAB	lab(48.77, -0.75, -41.53)
CIE-LCH	lch(48.77, 41.54, 268.97°)
OKLab	oklab(55.7% -0.0487 -0.1182)
OKLCH	oklch(55.7% 0.128 247.6)
XYZ	xyz(16.4127, 17.4075, 48.9398)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2778BA #BA6927

analogous

#27BAB3 #2778BA #272FBA

triadic

#2778BA #BA2778 #78BA27

tetradic

#2778BA #B327BA #BA6927 #2FBA27

square

#2778BA #B327BA #BA6927 #2FBA27

split-complementary

#2778BA #BA272F #BAB327

monochromatic

#123755 #1C5787 #2778BA #4697D8 #79B3E3

Accessibility & contrast

On white

4.69

#2778BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#2778BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2778BA

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2778BA	#FFFFFF	#000000	##FFFFFF
##2778BA	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBD

Deuteranopia (green-blind)

#446EB9

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #2778ba;
/* rgb */ color: rgb(39, 120, 186);
/* oklch */ color: oklch(55.7% 0.128 247.6);

Tailwind

colors: {
  custom: {
    50: '#789ecf',
    500: '#2778ba',
    950: '#000000',
  },
}

SCSS

$custom: #2778ba;
$custom-light: #789ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#2778ba",
  "rgb": {
    "r": 39,
    "g": 120,
    "b": 186
  },
  "hsl": {
    "h": 206.939,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55699,
    "c": 0.12786,
    "h": 247.6
  },
  "luminance": 0.17409
}

Semantic roles & 50–950 ramp

primary

#2778BA

secondary

#CB9A72

accent

#8B40E8

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2778BA

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

Preview Lab → · Contrast checker → · Palette generator →