#186B9E#186B9E

#186B9E is a mid, moderate cyan. Relative luminance 0.132; OKLCH L 50.6% C 0.110 H 242.0°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#186B9E
RGB	rgb(24, 107, 158)
HSL	hsl(203, 74%, 36%)
HSV	hsv(203, 85%, 62%)
CMYK	cmyk(84.8%, 32.3%, 0%, 38%)
CIE-LAB	lab(43.03, -4.98, -34.26)
CIE-LCH	lch(43.03, 34.62, 261.74°)
OKLab	oklab(50.6% -0.0518 -0.0973)
OKLCH	oklch(50.6% 0.11 242)
XYZ	xyz(11.8035, 13.1767, 34.2624)
Luminance	0.1318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#186B9E #9E4B18

analogous

#189E8E #186B9E #18289E

triadic

#186B9E #9E186B #6B9E18

tetradic

#186B9E #8E189E #9E4B18 #289E18

square

#186B9E #8E189E #9E4B18 #289E18

split-complementary

#186B9E #9E1828 #9E8E18

monochromatic

#082334 #104769 #186B9E #208FD3 #4DAAE4

Accessibility & contrast

On white

5.78

#186B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#186B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #186B9E

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##186B9E	#FFFFFF	#000000	##FFFFFF
##186B9E	1.00	5.78	3.64	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536CA0

Deuteranopia (green-blind)

#40609D

Tritanopia (blue-blind)

#00787D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #186b9e;
/* rgb */ color: rgb(24, 107, 158);
/* oklch */ color: oklch(50.6% 0.110 242.0);

Tailwind

colors: {
  custom: {
    50: '#6e95bb',
    500: '#186b9e',
    950: '#000000',
  },
}

SCSS

$custom: #186b9e;
$custom-light: #6e95bb;
$custom-dark: #000000;

JSON

{
  "hex": "#186b9e",
  "rgb": {
    "r": 24,
    "g": 107,
    "b": 158
  },
  "hsl": {
    "h": 202.836,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.506,
    "c": 0.11022,
    "h": 242
  },
  "luminance": 0.13178
}

Semantic roles & 50–950 ramp

primary

#186B9E

secondary

#C67A4C

accent

#7E38F0

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#080D12

muted

#7B7E81

Preview Lab

Preview with #186B9E

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

Preview Lab → · Contrast checker → · Palette generator →