#1B728C#1B728C

#1B728C is a mid, moderate cyan. Relative luminance 0.142; OKLCH L 51.5% C 0.088 H 223.1°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B728C
RGB	rgb(27, 114, 140)
HSL	hsl(194, 68%, 33%)
HSV	hsv(194, 81%, 55%)
CMYK	cmyk(80.7%, 18.6%, 0%, 45.1%)
CIE-LAB	lab(44.46, -15.47, -21.33)
CIE-LCH	lch(44.46, 26.35, 234.04°)
OKLab	oklab(51.48% -0.0639 -0.0598)
OKLCH	oklch(51.48% 0.088 223.1)
XYZ	xyz(11.2010, 14.1597, 26.9486)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B728C #8C351B

analogous

#1B8C6D #1B728C #1B3A8C

triadic

#1B728C #8C1B72 #728C1B

tetradic

#1B728C #6D1B8C #8C351B #3A8C1B

square

#1B728C #6D1B8C #8C351B #3A8C1B

split-complementary

#1B728C #8C1B3A #8C6D1B

monochromatic

#071E25 #114859 #1B728C #259CBF #46B9DB

Accessibility & contrast

On white

5.48

#1B728C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#1B728C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B728C

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B728C	#FFFFFF	#000000	##FFFFFF
##1B728C	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#636F8D

Deuteranopia (green-blind)

#54648C

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #1b728c;
/* rgb */ color: rgb(27, 114, 140);
/* oklch */ color: oklch(51.5% 0.088 223.1);

Tailwind

colors: {
  custom: {
    50: '#6b9aad',
    500: '#1b728c',
    950: '#000000',
  },
}

SCSS

$custom: #1b728c;
$custom-light: #6b9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b728c",
  "rgb": {
    "r": 27,
    "g": 114,
    "b": 140
  },
  "hsl": {
    "h": 193.805,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.51483,
    "c": 0.08751,
    "h": 223.1
  },
  "luminance": 0.14161
}

Semantic roles & 50–950 ramp

primary

#1B728C

secondary

#BD6146

accent

#653DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B728C

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

Preview Lab → · Contrast checker → · Palette generator →