#187EA1#187EA1

#187EA1 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.101 H 227.4°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#187EA1
RGB	rgb(24, 126, 161)
HSL	hsl(195, 74%, 36%)
HSV	hsv(195, 85%, 63%)
CMYK	cmyk(85.1%, 21.7%, 0%, 36.9%)
CIE-LAB	lab(49.11, -14.93, -26.51)
CIE-LCH	lch(49.11, 30.42, 240.60°)
OKLab	oklab(55.5% -0.0685 -0.0746)
OKLCH	oklch(55.5% 0.101 227.4)
XYZ	xyz(14.2679, 17.6873, 36.3733)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187EA1 #A13B18

analogous

#18A180 #187EA1 #183AA1

triadic

#187EA1 #A1187E #7EA118

tetradic

#187EA1 #8018A1 #A13B18 #3AA118

square

#187EA1 #8018A1 #A13B18 #3AA118

split-complementary

#187EA1 #A1183A #A18018

monochromatic

#082B36 #10546C #187EA1 #20A8D6 #4FBEE5

Accessibility & contrast

On white

4.63

#187EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#187EA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #187EA1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187EA1	#FFFFFF	#000000	##FFFFFF
##187EA1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA3

Deuteranopia (green-blind)

#5A6FA1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #187ea1;
/* rgb */ color: rgb(24, 126, 161);
/* oklch */ color: oklch(55.5% 0.101 227.4);

Tailwind

colors: {
  custom: {
    50: '#6fa3bd',
    500: '#187ea1',
    950: '#000000',
  },
}

SCSS

$custom: #187ea1;
$custom-light: #6fa3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#187ea1",
  "rgb": {
    "r": 24,
    "g": 126,
    "b": 161
  },
  "hsl": {
    "h": 195.328,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.55495,
    "c": 0.10124,
    "h": 227.4
  },
  "luminance": 0.17689
}

Semantic roles & 50–950 ramp

primary

#187EA1

secondary

#C76D4E

accent

#6737F1

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #187EA1

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

Preview Lab → · Contrast checker → · Palette generator →