#187C90#187C90

#187C90 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.2% C 0.090 H 215.3°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#187C90
RGB	rgb(24, 124, 144)
HSL	hsl(190, 71%, 33%)
HSV	hsv(190, 83%, 56%)
CMYK	cmyk(83.3%, 13.9%, 0%, 43.5%)
CIE-LAB	lab(47.78, -19.86, -18.60)
CIE-LCH	lch(47.78, 27.21, 223.13°)
OKLab	oklab(54.19% -0.0734 -0.052)
OKLCH	oklch(54.19% 0.09 215.3)
XYZ	xyz(12.6162, 16.6215, 28.9235)
Luminance	0.1662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187C90 #902C18

analogous

#189068 #187C90 #184090

triadic

#187C90 #90187C #7C9018

tetradic

#187C90 #681890 #902C18 #409018

square

#187C90 #681890 #902C18 #409018

split-complementary

#187C90 #901840 #906818

monochromatic

#072227 #0F4F5C #187C90 #21A9C4 #43C5E0

Accessibility & contrast

On white

4.86

#187C90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#187C90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187C90

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187C90	#FFFFFF	#000000	##FFFFFF
##187C90	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)

#6E7891

Deuteranopia (green-blind)

#5F6C90

Tritanopia (blue-blind)

#008382

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #187c90;
/* rgb */ color: rgb(24, 124, 144);
/* oklch */ color: oklch(54.2% 0.090 215.3);

Tailwind

colors: {
  custom: {
    50: '#6ca2b0',
    500: '#187c90',
    950: '#000000',
  },
}

SCSS

$custom: #187c90;
$custom-light: #6ca2b0;
$custom-dark: #000000;

JSON

{
  "hex": "#187c90",
  "rgb": {
    "r": 24,
    "g": 124,
    "b": 144
  },
  "hsl": {
    "h": 190,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.54191,
    "c": 0.08991,
    "h": 215.3
  },
  "luminance": 0.16623
}

Semantic roles & 50–950 ramp

primary

#187C90

secondary

#C05843

accent

#583AEE

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #187C90

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

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