#18788F#18788F

#18788F is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.1% C 0.090 H 218.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#18788F
RGB	rgb(24, 120, 143)
HSL	hsl(192, 71%, 33%)
HSV	hsv(192, 83%, 56%)
CMYK	cmyk(83.2%, 16.1%, 0%, 43.9%)
CIE-LAB	lab(46.46, -18.04, -20.04)
CIE-LCH	lch(46.46, 26.96, 228.01°)
OKLab	oklab(53.11% -0.0698 -0.0561)
OKLCH	oklch(53.11% 0.09 218.8)
XYZ	xyz(12.0490, 15.6088, 28.3590)
Luminance	0.1561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18788F #8F2F18

analogous

#188F6B #18788F #183C8F

triadic

#18788F #8F1878 #788F18

tetradic

#18788F #6B188F #8F2F18 #3C8F18

square

#18788F #6B188F #8F2F18 #3C8F18

split-complementary

#18788F #8F183C #8F6B18

monochromatic

#062026 #0F4C5B #18788F #21A4C3 #42C1DF

Accessibility & contrast

On white

5.09

#18788F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#18788F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18788F

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18788F	#FFFFFF	#000000	##FFFFFF
##18788F	1.00	5.09	4.12	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7490

Deuteranopia (green-blind)

#5A698F

Tritanopia (blue-blind)

#00807F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #18788f;
/* rgb */ color: rgb(24, 120, 143);
/* oklch */ color: oklch(53.1% 0.090 218.8);

Tailwind

colors: {
  custom: {
    50: '#6c9faf',
    500: '#18788f',
    950: '#000000',
  },
}

SCSS

$custom: #18788f;
$custom-light: #6c9faf;
$custom-dark: #000000;

JSON

{
  "hex": "#18788f",
  "rgb": {
    "r": 24,
    "g": 120,
    "b": 143
  },
  "hsl": {
    "h": 191.597,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.53112,
    "c": 0.08953,
    "h": 218.8
  },
  "luminance": 0.1561
}

Semantic roles & 50–950 ramp

primary

#18788F

secondary

#C05B43

accent

#5D3AEE

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #18788F

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

Preview Lab → · Contrast checker → · Palette generator →