#186E81#186E81

#186E81 is a mid, moderate cyan. Relative luminance 0.129; OKLCH L 49.9% C 0.082 H 216.8°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#186E81
RGB	rgb(24, 110, 129)
HSL	hsl(191, 69%, 30%)
HSV	hsv(191, 81%, 51%)
CMYK	cmyk(81.4%, 14.7%, 0%, 49.4%)
CIE-LAB	lab(42.66, -17.47, -17.52)
CIE-LCH	lch(42.66, 24.75, 225.08°)
OKLab	oklab(49.87% -0.0656 -0.049)
OKLCH	oklch(49.87% 0.082 216.8)
XYZ	xyz(9.9134, 12.9298, 22.7378)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#186E81 #812B18

analogous

#18815F #186E81 #183A81

triadic

#186E81 #81186E #6E8118

tetradic

#186E81 #5F1881 #812B18 #3A8118

square

#186E81 #5F1881 #812B18 #3A8118

split-complementary

#186E81 #81183A #815F18

monochromatic

#05161A #0E424D #186E81 #229AB5 #39BDDA

Accessibility & contrast

On white

5.86

#186E81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#186E81 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #186E81

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##186E81	#FFFFFF	#000000	##FFFFFF
##186E81	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616A82

Deuteranopia (green-blind)

#536081

Tritanopia (blue-blind)

#007574

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #186e81;
/* rgb */ color: rgb(24, 110, 129);
/* oklch */ color: oklch(49.9% 0.082 216.8);

Tailwind

colors: {
  custom: {
    50: '#6897a5',
    500: '#186e81',
    950: '#000000',
  },
}

SCSS

$custom: #186e81;
$custom-light: #6897a5;
$custom-dark: #000000;

JSON

{
  "hex": "#186e81",
  "rgb": {
    "r": 24,
    "g": 110,
    "b": 129
  },
  "hsl": {
    "h": 190.857,
    "s": 68.627,
    "l": 30
  },
  "oklch": {
    "l": 0.49867,
    "c": 0.08183,
    "h": 216.8
  },
  "luminance": 0.12931
}

Semantic roles & 50–950 ramp

primary

#186E81

secondary

#B55540

accent

#5C3CEB

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#070D0F

muted

#7A7E7F

Preview Lab

Preview with #186E81

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

Preview Lab → · Contrast checker → · Palette generator →