#1B728D#1B728D

#1B728D is a mid, moderate cyan. Relative luminance 0.142; OKLCH L 51.5% C 0.088 H 224.0°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B728D
RGB	rgb(27, 114, 141)
HSL	hsl(194, 68%, 33%)
HSV	hsv(194, 81%, 55%)
CMYK	cmyk(80.9%, 19.1%, 0%, 44.7%)
CIE-LAB	lab(44.50, -15.11, -21.86)
CIE-LCH	lch(44.50, 26.57, 235.34°)
OKLab	oklab(51.53% -0.0635 -0.0613)
OKLCH	oklch(51.53% 0.088 224)
XYZ	xyz(11.2750, 14.1893, 27.3387)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B728D #8D361B

analogous

#1B8D6F #1B728D #1B398D

triadic

#1B728D #8D1B72 #728D1B

tetradic

#1B728D #6F1B8D #8D361B #398D1B

square

#1B728D #6F1B8D #8D361B #398D1B

split-complementary

#1B728D #8D1B39 #8D6F1B

monochromatic

#071F26 #11485A #1B728D #259CC0 #47B8DC

Accessibility & contrast

On white

5.47

#1B728D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#1B728D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B728D

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B728D	#FFFFFF	#000000	##FFFFFF
##1B728D	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#636F8E

Deuteranopia (green-blind)

#54658D

Tritanopia (blue-blind)

#007A7B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #1b728d;
/* rgb */ color: rgb(27, 114, 141);
/* oklch */ color: oklch(51.5% 0.088 224.0);

Tailwind

colors: {
  custom: {
    50: '#6c9aae',
    500: '#1b728d',
    950: '#000000',
  },
}

SCSS

$custom: #1b728d;
$custom-light: #6c9aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b728d",
  "rgb": {
    "r": 27,
    "g": 114,
    "b": 141
  },
  "hsl": {
    "h": 194.211,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.51531,
    "c": 0.08826,
    "h": 224
  },
  "luminance": 0.14191
}

Semantic roles & 50–950 ramp

primary

#1B728D

secondary

#BD6346

accent

#663DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B728D

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

Preview Lab → · Contrast checker → · Palette generator →