#2780B0#2780B0

#2780B0 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.110 H 237.4°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#2780B0
RGB	rgb(39, 128, 176)
HSL	hsl(201, 64%, 42%)
HSV	hsv(201, 78%, 69%)
CMYK	cmyk(77.8%, 27.3%, 0%, 31%)
CIE-LAB	lab(50.69, -9.16, -32.73)
CIE-LCH	lch(50.69, 33.99, 254.37°)
OKLab	oklab(57.06% -0.0592 -0.0925)
OKLCH	oklch(57.06% 0.11 237.4)
XYZ	xyz(16.3892, 19.0023, 43.8699)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2780B0 #B05727

analogous

#27B09C #2780B0 #273BB0

triadic

#2780B0 #B02780 #80B027

tetradic

#2780B0 #9C27B0 #B05727 #3BB027

square

#2780B0 #9C27B0 #B05727 #3BB027

split-complementary

#2780B0 #B0273B #B09C27

monochromatic

#11374C #1C5C7E #2780B0 #40A0D5 #72B9E0

Accessibility & contrast

On white

4.37

#2780B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#2780B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2780B0

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2780B0	#FFFFFF	#000000	##000000
##2780B0	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B2

Deuteranopia (green-blind)

#5773AF

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #2780b0;
/* rgb */ color: rgb(39, 128, 176);
/* oklch */ color: oklch(57.1% 0.110 237.4);

Tailwind

colors: {
  custom: {
    50: '#76a4c8',
    500: '#2780b0',
    950: '#000000',
  },
}

SCSS

$custom: #2780b0;
$custom-light: #76a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2780b0",
  "rgb": {
    "r": 39,
    "g": 128,
    "b": 176
  },
  "hsl": {
    "h": 201.022,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.57056,
    "c": 0.10981,
    "h": 237.4
  },
  "luminance": 0.19004
}

Semantic roles & 50–950 ramp

primary

#2780B0

secondary

#C78C6C

accent

#7B41E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #2780B0

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

Preview Lab → · Contrast checker → · Palette generator →