#2780AB#2780AB

#2780AB is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.8% C 0.105 H 234.4°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#2780AB
RGB	rgb(39, 128, 171)
HSL	hsl(200, 63%, 41%)
HSV	hsv(200, 77%, 67%)
CMYK	cmyk(77.2%, 25.1%, 0%, 32.9%)
CIE-LAB	lab(50.46, -10.95, -30.20)
CIE-LCH	lch(50.46, 32.12, 250.07°)
OKLab	oklab(56.8% -0.0609 -0.0851)
OKLCH	oklch(56.8% 0.105 234.4)
XYZ	xyz(15.9036, 18.8081, 41.3123)
Luminance	0.1881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2780AB #AB5227

analogous

#27AB94 #2780AB #273EAB

triadic

#2780AB #AB2780 #80AB27

tetradic

#2780AB #9427AB #AB5227 #3EAB27

square

#2780AB #9427AB #AB5227 #3EAB27

split-complementary

#2780AB #AB273E #AB9427

monochromatic

#103547 #1C5B79 #2780AB #3DA2D3 #6EBADE

Accessibility & contrast

On white

4.41

#2780AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#2780AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2780AB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2780AB	#FFFFFF	#000000	##000000
##2780AB	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAD

Deuteranopia (green-blind)

#5973AA

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #2780ab;
/* rgb */ color: rgb(39, 128, 171);
/* oklch */ color: oklch(56.8% 0.105 234.4);

Tailwind

colors: {
  custom: {
    50: '#75a4c4',
    500: '#2780ab',
    950: '#000000',
  },
}

SCSS

$custom: #2780ab;
$custom-light: #75a4c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2780ab",
  "rgb": {
    "r": 39,
    "g": 128,
    "b": 171
  },
  "hsl": {
    "h": 199.545,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.56799,
    "c": 0.1047,
    "h": 234.4
  },
  "luminance": 0.1881
}

Semantic roles & 50–950 ramp

primary

#2780AB

secondary

#C58769

accent

#7742E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #2780AB

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

Preview Lab → · Contrast checker → · Palette generator →