#2781AB#2781AB

#2781AB is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.0% C 0.104 H 233.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#2781AB
RGB	rgb(39, 129, 171)
HSL	hsl(199, 63%, 41%)
HSV	hsv(199, 77%, 67%)
CMYK	cmyk(77.2%, 24.6%, 0%, 32.9%)
CIE-LAB	lab(50.77, -11.52, -29.72)
CIE-LCH	lch(50.77, 31.88, 248.81°)
OKLab	oklab(57.04% -0.0619 -0.0837)
OKLCH	oklch(57.04% 0.104 233.5)
XYZ	xyz(16.0347, 19.0702, 41.3560)
Luminance	0.1907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2781AB #AB5127

analogous

#27AB93 #2781AB #273FAB

triadic

#2781AB #AB2781 #81AB27

tetradic

#2781AB #9327AB #AB5127 #3FAB27

square

#2781AB #9327AB #AB5127 #3FAB27

split-complementary

#2781AB #AB273F #AB9327

monochromatic

#103647 #1C5B79 #2781AB #3DA3D3 #6EBADE

Accessibility & contrast

On white

4.36

#2781AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#2781AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2781AB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2781AB	#FFFFFF	#000000	##000000
##2781AB	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C80AD

Deuteranopia (green-blind)

#5B73AA

Tritanopia (blue-blind)

#008C8F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #2781ab;
/* rgb */ color: rgb(39, 129, 171);
/* oklch */ color: oklch(57.0% 0.104 233.5);

Tailwind

colors: {
  custom: {
    50: '#75a5c4',
    500: '#2781ab',
    950: '#000000',
  },
}

SCSS

$custom: #2781ab;
$custom-light: #75a5c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2781ab",
  "rgb": {
    "r": 39,
    "g": 129,
    "b": 171
  },
  "hsl": {
    "h": 199.091,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.57044,
    "c": 0.10415,
    "h": 233.5
  },
  "luminance": 0.19072
}

Semantic roles & 50–950 ramp

primary

#2781AB

secondary

#C58669

accent

#7642E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #2781AB

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

Preview Lab → · Contrast checker → · Palette generator →