#187EA0#187EA0

#187EA0 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.4% C 0.100 H 226.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#187EA0
RGB	rgb(24, 126, 160)
HSL	hsl(195, 74%, 36%)
HSV	hsv(195, 85%, 63%)
CMYK	cmyk(85%, 21.2%, 0%, 37.3%)
CIE-LAB	lab(49.07, -15.29, -25.99)
CIE-LCH	lch(49.07, 30.16, 239.52°)
OKLab	oklab(55.45% -0.0689 -0.0731)
OKLCH	oklch(55.45% 0.1 226.7)
XYZ	xyz(14.1801, 17.6522, 35.9107)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187EA0 #A03A18

analogous

#18A07E #187EA0 #183AA0

triadic

#187EA0 #A0187E #7EA018

tetradic

#187EA0 #7E18A0 #A03A18 #3AA018

square

#187EA0 #7E18A0 #A03A18 #3AA018

split-complementary

#187EA0 #A0183A #A07E18

monochromatic

#082A36 #10546B #187EA0 #20A8D5 #4EBFE4

Accessibility & contrast

On white

4.63

#187EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#187EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #187EA0

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187EA0	#FFFFFF	#000000	##FFFFFF
##187EA0	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA2

Deuteranopia (green-blind)

#5A6FA0

Tritanopia (blue-blind)

#008889

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #187ea0;
/* rgb */ color: rgb(24, 126, 160);
/* oklch */ color: oklch(55.4% 0.100 226.7);

Tailwind

colors: {
  custom: {
    50: '#6fa3bc',
    500: '#187ea0',
    950: '#000000',
  },
}

SCSS

$custom: #187ea0;
$custom-light: #6fa3bc;
$custom-dark: #000000;

JSON

{
  "hex": "#187ea0",
  "rgb": {
    "r": 24,
    "g": 126,
    "b": 160
  },
  "hsl": {
    "h": 195,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55447,
    "c": 0.10042,
    "h": 226.7
  },
  "luminance": 0.17654
}

Semantic roles & 50–950 ramp

primary

#187EA0

secondary

#C66C4D

accent

#6637F1

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #187EA0

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

Preview Lab → · Contrast checker → · Palette generator →