#2780AA#2780AA

#2780AA is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.7% C 0.104 H 233.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2780AA
RGB	rgb(39, 128, 170)
HSL	hsl(199, 63%, 41%)
HSV	hsv(199, 77%, 67%)
CMYK	cmyk(77.1%, 24.7%, 0%, 33.3%)
CIE-LAB	lab(50.42, -11.31, -29.69)
CIE-LCH	lch(50.42, 31.77, 249.15°)
OKLab	oklab(56.75% -0.0613 -0.0837)
OKLCH	oklch(56.75% 0.104 233.8)
XYZ	xyz(15.8087, 18.7701, 40.8122)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2780AA #AA5127

analogous

#27AA92 #2780AA #273EAA

triadic

#2780AA #AA2780 #80AA27

tetradic

#2780AA #9227AA #AA5127 #3EAA27

square

#2780AA #9227AA #AA5127 #3EAA27

split-complementary

#2780AA #AA273E #AA9227

monochromatic

#103546 #1C5B78 #2780AA #3CA2D2 #6EBADE

Accessibility & contrast

On white

4.42

#2780AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#2780AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2780AA

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2780AA	#FFFFFF	#000000	##000000
##2780AA	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAC

Deuteranopia (green-blind)

#5A73A9

Tritanopia (blue-blind)

#008B8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2780aa;
/* rgb */ color: rgb(39, 128, 170);
/* oklch */ color: oklch(56.7% 0.104 233.8);

Tailwind

colors: {
  custom: {
    50: '#75a4c3',
    500: '#2780aa',
    950: '#000000',
  },
}

SCSS

$custom: #2780aa;
$custom-light: #75a4c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2780aa",
  "rgb": {
    "r": 39,
    "g": 128,
    "b": 170
  },
  "hsl": {
    "h": 199.237,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.56749,
    "c": 0.10371,
    "h": 233.8
  },
  "luminance": 0.18772
}

Semantic roles & 50–950 ramp

primary

#2780AA

secondary

#C48669

accent

#7742E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #2780AA

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

Preview Lab → · Contrast checker → · Palette generator →