#18728B#18728B

#18728B is a mid, moderate cyan. Relative luminance 0.141; OKLCH L 51.4% C 0.088 H 221.8°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#18728B
RGB	rgb(24, 114, 139)
HSL	hsl(193, 71%, 32%)
HSV	hsv(193, 83%, 55%)
CMYK	cmyk(82.7%, 18%, 0%, 45.5%)
CIE-LAB	lab(44.36, -16.14, -20.89)
CIE-LCH	lch(44.36, 26.40, 232.30°)
OKLab	oklab(51.38% -0.0654 -0.0585)
OKLCH	oklch(51.38% 0.088 221.8)
XYZ	xyz(11.0522, 14.0915, 26.5585)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18728B #8B3118

analogous

#188B6A #18728B #18398B

triadic

#18728B #8B1872 #728B18

tetradic

#18728B #6A188B #8B3118 #398B18

square

#18728B #6A188B #8B3118 #398B18

split-complementary

#18728B #8B1839 #8B6A18

monochromatic

#061C23 #0F4757 #18728B #219DBF #3FBBDE

Accessibility & contrast

On white

5.50

#18728B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#18728B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18728B

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18728B	#FFFFFF	#000000	##FFFFFF
##18728B	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#636F8C

Deuteranopia (green-blind)

#54648B

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #18728b;
/* rgb */ color: rgb(24, 114, 139);
/* oklch */ color: oklch(51.4% 0.088 221.8);

Tailwind

colors: {
  custom: {
    50: '#6a9aad',
    500: '#18728b',
    950: '#000000',
  },
}

SCSS

$custom: #18728b;
$custom-light: #6a9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#18728b",
  "rgb": {
    "r": 24,
    "g": 114,
    "b": 139
  },
  "hsl": {
    "h": 193.043,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.51375,
    "c": 0.0878,
    "h": 221.8
  },
  "luminance": 0.14093
}

Semantic roles & 50–950 ramp

primary

#18728B

secondary

#BE5C40

accent

#613AED

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #18728B

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

Preview Lab → · Contrast checker → · Palette generator →