#187A90#187A90

#187A90 is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 53.7% C 0.090 H 217.5°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#187A90
RGB	rgb(24, 122, 144)
HSL	hsl(191, 71%, 33%)
HSV	hsv(191, 83%, 56%)
CMYK	cmyk(83.3%, 15.3%, 0%, 43.5%)
CIE-LAB	lab(47.14, -18.78, -19.58)
CIE-LCH	lch(47.14, 27.13, 226.21°)
OKLab	oklab(53.67% -0.0714 -0.0548)
OKLCH	oklch(53.67% 0.09 217.5)
XYZ	xyz(12.3681, 16.1253, 28.8408)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187A90 #902E18

analogous

#18906A #187A90 #183E90

triadic

#187A90 #90187A #7A9018

tetradic

#187A90 #6A1890 #902E18 #3E9018

square

#187A90 #6A1890 #902E18 #3E9018

split-complementary

#187A90 #90183E #906A18

monochromatic

#072127 #0F4E5C #187A90 #21A6C4 #43C3E0

Accessibility & contrast

On white

4.97

#187A90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#187A90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187A90

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187A90	#FFFFFF	#000000	##FFFFFF
##187A90	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7691

Deuteranopia (green-blind)

#5C6B90

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #187a90;
/* rgb */ color: rgb(24, 122, 144);
/* oklch */ color: oklch(53.7% 0.090 217.5);

Tailwind

colors: {
  custom: {
    50: '#6ca0b0',
    500: '#187a90',
    950: '#000000',
  },
}

SCSS

$custom: #187a90;
$custom-light: #6ca0b0;
$custom-dark: #000000;

JSON

{
  "hex": "#187a90",
  "rgb": {
    "r": 24,
    "g": 122,
    "b": 144
  },
  "hsl": {
    "h": 191,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.53674,
    "c": 0.08997,
    "h": 217.5
  },
  "luminance": 0.16127
}

Semantic roles & 50–950 ramp

primary

#187A90

secondary

#C05A43

accent

#5B3AEE

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #187A90

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

Preview Lab → · Contrast checker → · Palette generator →