#18536F#18536F

#18536F is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.9% C 0.075 H 233.6°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#18536F
RGB	rgb(24, 83, 111)
HSL	hsl(199, 64%, 26%)
HSV	hsv(199, 78%, 44%)
CMYK	cmyk(78.4%, 25.2%, 0%, 56.5%)
CIE-LAB	lab(32.98, -8.36, -21.43)
CIE-LCH	lch(32.98, 23.01, 248.69°)
OKLab	oklab(41.85% -0.0445 -0.0603)
OKLCH	oklch(41.85% 0.075 233.6)
XYZ	xyz(6.3380, 7.5277, 16.1548)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18536F #6F3418

analogous

#186F60 #18536F #18286F

triadic

#18536F #6F1853 #536F18

tetradic

#18536F #60186F #6F3418 #286F18

square

#18536F #60186F #6F3418 #286F18

split-complementary

#18536F #6F1828 #6F6018

monochromatic

#051319 #0D2D3D #18536F #2379A1 #2F9ED2

Accessibility & contrast

On white

8.38

#18536F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#18536F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18536F

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18536F	#FFFFFF	#000000	##FFFFFF
##18536F	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455270

Deuteranopia (green-blind)

#394A6F

Tritanopia (blue-blind)

#005A5C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #18536f;
/* rgb */ color: rgb(24, 83, 111);
/* oklch */ color: oklch(41.9% 0.075 233.6);

Tailwind

colors: {
  custom: {
    50: '#638398',
    500: '#18536f',
    950: '#000000',
  },
}

SCSS

$custom: #18536f;
$custom-light: #638398;
$custom-dark: #000000;

JSON

{
  "hex": "#18536f",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 111
  },
  "hsl": {
    "h": 199.31,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.41851,
    "c": 0.075,
    "h": 233.6
  },
  "luminance": 0.07528
}

Semantic roles & 50–950 ramp

primary

#18536F

secondary

#A55F3E

accent

#7640E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #18536F

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

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