#187CA0#187CA0

#187CA0 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.9% C 0.101 H 228.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#187CA0
RGB	rgb(24, 124, 160)
HSL	hsl(196, 74%, 36%)
HSV	hsv(196, 85%, 63%)
CMYK	cmyk(85%, 22.5%, 0%, 37.3%)
CIE-LAB	lab(48.44, -14.17, -26.96)
CIE-LCH	lch(48.44, 30.46, 242.27°)
OKLab	oklab(54.94% -0.0669 -0.0759)
OKLCH	oklch(54.94% 0.101 228.6)
XYZ	xyz(13.9269, 17.1458, 35.8263)
Luminance	0.1715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187CA0 #A03C18

analogous

#18A080 #187CA0 #1838A0

triadic

#187CA0 #A0187C #7CA018

tetradic

#187CA0 #8018A0 #A03C18 #38A018

square

#187CA0 #8018A0 #A03C18 #38A018

split-complementary

#187CA0 #A01838 #A08018

monochromatic

#082A36 #10536B #187CA0 #20A5D5 #4EBDE4

Accessibility & contrast

On white

4.74

#187CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#187CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187CA0

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187CA0	#FFFFFF	#000000	##FFFFFF
##187CA0	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697AA2

Deuteranopia (green-blind)

#586EA0

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #187ca0;
/* rgb */ color: rgb(24, 124, 160);
/* oklch */ color: oklch(54.9% 0.101 228.6);

Tailwind

colors: {
  custom: {
    50: '#6fa2bc',
    500: '#187ca0',
    950: '#000000',
  },
}

SCSS

$custom: #187ca0;
$custom-light: #6fa2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#187ca0",
  "rgb": {
    "r": 24,
    "g": 124,
    "b": 160
  },
  "hsl": {
    "h": 195.882,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.54943,
    "c": 0.10122,
    "h": 228.6
  },
  "luminance": 0.17148
}

Semantic roles & 50–950 ramp

primary

#187CA0

secondary

#C66D4D

accent

#6837F1

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #187CA0

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

Preview Lab → · Contrast checker → · Palette generator →