#187DA0#187DA0

#187DA0 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.2% C 0.101 H 227.7°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#187DA0
RGB	rgb(24, 125, 160)
HSL	hsl(195, 74%, 36%)
HSV	hsv(195, 85%, 63%)
CMYK	cmyk(85%, 21.9%, 0%, 37.3%)
CIE-LAB	lab(48.76, -14.74, -26.48)
CIE-LCH	lch(48.76, 30.30, 240.90°)
OKLab	oklab(55.2% -0.0679 -0.0745)
OKLCH	oklch(55.2% 0.101 227.7)
XYZ	xyz(14.0528, 17.3977, 35.8683)
Luminance	0.1740 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187DA0 #A03B18

analogous

#18A07F #187DA0 #1839A0

triadic

#187DA0 #A0187D #7DA018

tetradic

#187DA0 #7F18A0 #A03B18 #39A018

square

#187DA0 #7F18A0 #A03B18 #39A018

split-complementary

#187DA0 #A01839 #A07F18

monochromatic

#082A36 #10536B #187DA0 #20A7D5 #4EBEE4

Accessibility & contrast

On white

4.69

#187DA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#187DA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187DA0

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187DA0	#FFFFFF	#000000	##FFFFFF
##187DA0	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7BA2

Deuteranopia (green-blind)

#596EA0

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #187da0;
/* rgb */ color: rgb(24, 125, 160);
/* oklch */ color: oklch(55.2% 0.101 227.7);

Tailwind

colors: {
  custom: {
    50: '#6fa2bc',
    500: '#187da0',
    950: '#000000',
  },
}

SCSS

$custom: #187da0;
$custom-light: #6fa2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#187da0",
  "rgb": {
    "r": 24,
    "g": 125,
    "b": 160
  },
  "hsl": {
    "h": 195.441,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55195,
    "c": 0.1008,
    "h": 227.7
  },
  "luminance": 0.17399
}

Semantic roles & 50–950 ramp

primary

#187DA0

secondary

#C66C4D

accent

#6737F1

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #187DA0

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

Preview Lab → · Contrast checker → · Palette generator →