#18687C#18687C

#18687C is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.1% C 0.079 H 219.1°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#18687C
RGB	rgb(24, 104, 124)
HSL	hsl(192, 68%, 29%)
HSV	hsv(192, 81%, 49%)
CMYK	cmyk(80.6%, 16.1%, 0%, 51.4%)
CIE-LAB	lab(40.49, -15.90, -17.83)
CIE-LCH	lch(40.49, 23.89, 228.27°)
OKLab	oklab(48.06% -0.0615 -0.0499)
OKLCH	oklch(48.06% 0.079 219.1)
XYZ	xyz(8.9636, 11.5490, 20.8216)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18687C #7C2C18

analogous

#187C5E #18687C #18367C

triadic

#18687C #7C1868 #687C18

tetradic

#18687C #5E187C #7C2C18 #367C18

square

#18687C #5E187C #7C2C18 #367C18

split-complementary

#18687C #7C1836 #7C5E18

monochromatic

#05161A #0E3D49 #18687C #2293AF #36B8D8

Accessibility & contrast

On white

6.34

#18687C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#18687C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18687C

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18687C	#FFFFFF	#000000	##FFFFFF
##18687C	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B657D

Deuteranopia (green-blind)

#4E5B7C

Tritanopia (blue-blind)

#006F6E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #18687c;
/* rgb */ color: rgb(24, 104, 124);
/* oklch */ color: oklch(48.1% 0.079 219.1);

Tailwind

colors: {
  custom: {
    50: '#6793a2',
    500: '#18687c',
    950: '#000000',
  },
}

SCSS

$custom: #18687c;
$custom-light: #6793a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18687c",
  "rgb": {
    "r": 24,
    "g": 104,
    "b": 124
  },
  "hsl": {
    "h": 192,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.48055,
    "c": 0.07914,
    "h": 219.1
  },
  "luminance": 0.1155
}

Semantic roles & 50–950 ramp

primary

#18687C

secondary

#B1563F

accent

#603DEA

background

#F6F9F9

surface

#EBF1F2

border

#C6CBCC

text

#070D0F

muted

#7A7E7E

Preview Lab

Preview with #18687C

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

Preview Lab → · Contrast checker → · Palette generator →