#187A9F#187A9F

#187A9F is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.4% C 0.101 H 229.7°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#187A9F
RGB	rgb(24, 122, 159)
HSL	hsl(196, 74%, 36%)
HSV	hsv(196, 85%, 62%)
CMYK	cmyk(84.9%, 23.3%, 0%, 37.6%)
CIE-LAB	lab(47.77, -13.41, -27.42)
CIE-LCH	lch(47.77, 30.53, 243.94°)
OKLab	oklab(54.39% -0.0654 -0.0773)
OKLCH	oklch(54.39% 0.101 229.7)
XYZ	xyz(13.5916, 16.6147, 35.2848)
Luminance	0.1662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187A9F #9F3D18

analogous

#189F80 #187A9F #18379F

triadic

#187A9F #9F187A #7A9F18

tetradic

#187A9F #80189F #9F3D18 #379F18

square

#187A9F #80189F #9F3D18 #379F18

split-complementary

#187A9F #9F1837 #9F8018

monochromatic

#082835 #10516A #187A9F #20A3D4 #4DBBE4

Accessibility & contrast

On white

4.86

#187A9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#187A9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187A9F

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187A9F	#FFFFFF	#000000	##FFFFFF
##187A9F	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6778A1

Deuteranopia (green-blind)

#556C9E

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #187a9f;
/* rgb */ color: rgb(24, 122, 159);
/* oklch */ color: oklch(54.4% 0.101 229.7);

Tailwind

colors: {
  custom: {
    50: '#6fa0bb',
    500: '#187a9f',
    950: '#000000',
  },
}

SCSS

$custom: #187a9f;
$custom-light: #6fa0bb;
$custom-dark: #000000;

JSON

{
  "hex": "#187a9f",
  "rgb": {
    "r": 24,
    "g": 122,
    "b": 159
  },
  "hsl": {
    "h": 196.444,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.54391,
    "c": 0.10124,
    "h": 229.7
  },
  "luminance": 0.16616
}

Semantic roles & 50–950 ramp

primary

#187A9F

secondary

#C66E4D

accent

#6A37F0

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #187A9F

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

Preview Lab → · Contrast checker → · Palette generator →