#187F99#187F99

#187F99 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.4% C 0.095 H 220.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#187F99
RGB	rgb(24, 127, 153)
HSL	hsl(192, 73%, 35%)
HSV	hsv(192, 84%, 60%)
CMYK	cmyk(84.3%, 17%, 0%, 40%)
CIE-LAB	lab(49.09, -18.34, -21.86)
CIE-LCH	lch(49.09, 28.54, 230.01°)
OKLab	oklab(55.37% -0.0726 -0.0612)
OKLCH	oklch(55.37% 0.095 220.2)
XYZ	xyz(13.7134, 17.6711, 32.8189)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187F99 #993218

analogous

#189973 #187F99 #183F99

triadic

#187F99 #99187F #7F9918

tetradic

#187F99 #731899 #993218 #3F9918

square

#187F99 #731899 #993218 #3F9918

split-complementary

#187F99 #99183F #997318

monochromatic

#07272F #105364 #187F99 #20ABCE #49C4E2

Accessibility & contrast

On white

4.63

#187F99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#187F99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #187F99

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187F99	#FFFFFF	#000000	##FFFFFF
##187F99	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7B9A

Deuteranopia (green-blind)

#5F6F99

Tritanopia (blue-blind)

#008787

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #187f99;
/* rgb */ color: rgb(24, 127, 153);
/* oklch */ color: oklch(55.4% 0.095 220.2);

Tailwind

colors: {
  custom: {
    50: '#6ea4b7',
    500: '#187f99',
    950: '#000000',
  },
}

SCSS

$custom: #187f99;
$custom-light: #6ea4b7;
$custom-dark: #000000;

JSON

{
  "hex": "#187f99",
  "rgb": {
    "r": 24,
    "g": 127,
    "b": 153
  },
  "hsl": {
    "h": 192.093,
    "s": 72.881,
    "l": 34.706
  },
  "oklch": {
    "l": 0.55369,
    "c": 0.09498,
    "h": 220.2
  },
  "luminance": 0.17673
}

Semantic roles & 50–950 ramp

primary

#187F99

secondary

#C46249

accent

#5D38F0

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#080F11

muted

#7B7F80

Preview Lab

Preview with #187F99

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

Preview Lab → · Contrast checker → · Palette generator →