#18637A#18637A

#18637A is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 46.6% C 0.079 H 223.4°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#18637A
RGB	rgb(24, 99, 122)
HSL	hsl(194, 67%, 29%)
HSV	hsv(194, 80%, 48%)
CMYK	cmyk(80.3%, 18.9%, 0%, 52.2%)
CIE-LAB	lab(38.76, -13.78, -19.27)
CIE-LCH	lch(38.76, 23.69, 234.43°)
OKLab	oklab(46.64% -0.0571 -0.054)
OKLCH	oklch(46.64% 0.079 223.4)
XYZ	xyz(8.3499, 10.5220, 19.9995)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18637A #7A2F18

analogous

#187A60 #18637A #18327A

triadic

#18637A #7A1863 #637A18

tetradic

#18637A #60187A #7A2F18 #327A18

square

#18637A #60187A #7A2F18 #327A18

split-complementary

#18637A #7A1832 #7A6018

monochromatic

#05151A #0E3947 #18637A #228CAD #35B1D7

Accessibility & contrast

On white

6.76

#18637A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#18637A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18637A

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18637A	#FFFFFF	#000000	##FFFFFF
##18637A	1.00	6.76	3.10	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56617B

Deuteranopia (green-blind)

#49577A

Tritanopia (blue-blind)

#006A6A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #18637a;
/* rgb */ color: rgb(24, 99, 122);
/* oklch */ color: oklch(46.6% 0.079 223.4);

Tailwind

colors: {
  custom: {
    50: '#668fa0',
    500: '#18637a',
    950: '#000000',
  },
}

SCSS

$custom: #18637a;
$custom-light: #668fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#18637a",
  "rgb": {
    "r": 24,
    "g": 99,
    "b": 122
  },
  "hsl": {
    "h": 194.082,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.46641,
    "c": 0.07857,
    "h": 223.4
  },
  "luminance": 0.10523
}

Semantic roles & 50–950 ramp

primary

#18637A

secondary

#AF593F

accent

#663EEA

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0E

muted

#7A7D7E

Preview Lab

Preview with #18637A

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

Preview Lab → · Contrast checker → · Palette generator →