#2777BD#2777BD

#2777BD is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.6% C 0.133 H 249.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#2777BD
RGB	rgb(39, 119, 189)
HSL	hsl(208, 66%, 45%)
HSV	hsv(208, 79%, 74%)
CMYK	cmyk(79.4%, 37%, 0%, 25.9%)
CIE-LAB	lab(48.63, 0.98, -43.48)
CIE-LCH	lch(48.63, 43.49, 271.30°)
OKLab	oklab(55.64% -0.047 -0.1239)
OKLCH	oklch(55.64% 0.133 249.2)
XYZ	xyz(16.6153, 17.2971, 50.5972)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2777BD #BD6D27

analogous

#27BDB8 #2777BD #272CBD

triadic

#2777BD #BD2777 #77BD27

tetradic

#2777BD #B827BD #BD6D27 #2CBD27

square

#2777BD #B827BD #BD6D27 #2CBD27

split-complementary

#2777BD #BD272C #BDB827

monochromatic

#123758 #1D578A #2777BD #4895D9 #7BB3E4

Accessibility & contrast

On white

4.71

#2777BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#2777BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2777BD

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2777BD	#FFFFFF	#000000	##FFFFFF
##2777BD	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567BC0

Deuteranopia (green-blind)

#3F6DBC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2777bd;
/* rgb */ color: rgb(39, 119, 189);
/* oklch */ color: oklch(55.6% 0.133 249.2);

Tailwind

colors: {
  custom: {
    50: '#789dd1',
    500: '#2777bd',
    950: '#000000',
  },
}

SCSS

$custom: #2777bd;
$custom-light: #789dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2777bd",
  "rgb": {
    "r": 39,
    "g": 119,
    "b": 189
  },
  "hsl": {
    "h": 208,
    "s": 65.789,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55644,
    "c": 0.13255,
    "h": 249.2
  },
  "luminance": 0.17299
}

Semantic roles & 50–950 ramp

primary

#2777BD

secondary

#CC9D74

accent

#8E3FE9

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2777BD

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

Preview Lab → · Contrast checker → · Palette generator →