#18586F#18586F

#18586F is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.2% C 0.073 H 226.6°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#18586F
RGB	rgb(24, 88, 111)
HSL	hsl(196, 64%, 26%)
HSV	hsv(196, 78%, 44%)
CMYK	cmyk(78.4%, 20.7%, 0%, 56.5%)
CIE-LAB	lab(34.64, -11.38, -18.85)
CIE-LCH	lch(34.64, 22.02, 238.88°)
OKLab	oklab(43.18% -0.0499 -0.0529)
OKLCH	oklch(43.18% 0.073 226.6)
XYZ	xyz(6.7345, 8.3205, 16.2869)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18586F #6F2F18

analogous

#186F5B #18586F #182D6F

triadic

#18586F #6F1858 #586F18

tetradic

#18586F #5B186F #6F2F18 #2D6F18

square

#18586F #5B186F #6F2F18 #2D6F18

split-complementary

#18586F #6F182D #6F5B18

monochromatic

#051419 #0D303D #18586F #2380A1 #2FA7D2

Accessibility & contrast

On white

7.88

#18586F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#18586F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18586F

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18586F	#FFFFFF	#000000	##FFFFFF
##18586F	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5670

Deuteranopia (green-blind)

#404E6F

Tritanopia (blue-blind)

#005F60

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #18586f;
/* rgb */ color: rgb(24, 88, 111);
/* oklch */ color: oklch(43.2% 0.073 226.6);

Tailwind

colors: {
  custom: {
    50: '#638798',
    500: '#18586f',
    950: '#000000',
  },
}

SCSS

$custom: #18586f;
$custom-light: #638798;
$custom-dark: #000000;

JSON

{
  "hex": "#18586f",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 111
  },
  "hsl": {
    "h": 195.862,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.43179,
    "c": 0.07272,
    "h": 226.6
  },
  "luminance": 0.08321
}

Semantic roles & 50–950 ramp

primary

#18586F

secondary

#A5593E

accent

#6D40E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18586F

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

Preview Lab → · Contrast checker → · Palette generator →