#18708F#18708F

#18708F is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.1% C 0.092 H 227.5°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#18708F
RGB	rgb(24, 112, 143)
HSL	hsl(196, 71%, 33%)
HSV	hsv(196, 83%, 56%)
CMYK	cmyk(83.2%, 21.7%, 0%, 43.9%)
CIE-LAB	lab(43.89, -13.57, -24.00)
CIE-LCH	lch(43.89, 27.57, 240.52°)
OKLab	oklab(51.05% -0.0618 -0.0675)
OKLCH	oklch(51.05% 0.092 227.5)
XYZ	xyz(11.1267, 13.7643, 28.0516)
Luminance	0.1377 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18708F #8F3718

analogous

#188F72 #18708F #18358F

triadic

#18708F #8F1870 #708F18

tetradic

#18708F #72188F #8F3718 #358F18

square

#18708F #72188F #8F3718 #358F18

split-complementary

#18708F #8F1835 #8F7218

monochromatic

#061E26 #0F475B #18708F #2199C3 #42B6DF

Accessibility & contrast

On white

5.60

#18708F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#18708F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18708F

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18708F	#FFFFFF	#000000	##FFFFFF
##18708F	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6E91

Deuteranopia (green-blind)

#50638F

Tritanopia (blue-blind)

#00797A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #18708f;
/* rgb */ color: rgb(24, 112, 143);
/* oklch */ color: oklch(51.1% 0.092 227.5);

Tailwind

colors: {
  custom: {
    50: '#6b99b0',
    500: '#18708f',
    950: '#000000',
  },
}

SCSS

$custom: #18708f;
$custom-light: #6b99b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18708f",
  "rgb": {
    "r": 24,
    "g": 112,
    "b": 143
  },
  "hsl": {
    "h": 195.63,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.51054,
    "c": 0.09154,
    "h": 227.5
  },
  "luminance": 0.13766
}

Semantic roles & 50–950 ramp

primary

#18708F

secondary

#C06343

accent

#693AEE

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080D10

muted

#7B7E7F

Preview Lab

Preview with #18708F

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

Preview Lab → · Contrast checker → · Palette generator →