#18586B#18586B

#18586B is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.0% C 0.069 H 222.0°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#18586B
RGB	rgb(24, 88, 107)
HSL	hsl(194, 63%, 26%)
HSV	hsv(194, 78%, 42%)
CMYK	cmyk(77.6%, 17.8%, 0%, 58%)
CIE-LAB	lab(34.47, -12.86, -16.63)
CIE-LCH	lch(34.47, 21.02, 232.30°)
OKLab	oklab(42.98% -0.0516 -0.0465)
OKLCH	oklch(42.98% 0.069 222)
XYZ	xyz(6.5192, 8.2344, 15.1529)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18586B #6B2B18

analogous

#186B54 #18586B #182E6B

triadic

#18586B #6B1858 #586B18

tetradic

#18586B #54186B #6B2B18 #2E6B18

square

#18586B #54186B #6B2B18 #2E6B18

split-complementary

#18586B #6B182E #6B5418

monochromatic

#061519 #0D2F39 #18586B #23819D #2EAACF

Accessibility & contrast

On white

7.93

#18586B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#18586B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18586B

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18586B	#FFFFFF	#000000	##FFFFFF
##18586B	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D566C

Deuteranopia (green-blind)

#424D6B

Tritanopia (blue-blind)

#005E5E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #18586b;
/* rgb */ color: rgb(24, 88, 107);
/* oklch */ color: oklch(43.0% 0.069 222.0);

Tailwind

colors: {
  custom: {
    50: '#638795',
    500: '#18586b',
    950: '#000000',
  },
}

SCSS

$custom: #18586b;
$custom-light: #638795;
$custom-dark: #000000;

JSON

{
  "hex": "#18586b",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 107
  },
  "hsl": {
    "h": 193.735,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.4298,
    "c": 0.06947,
    "h": 222
  },
  "luminance": 0.08235
}

Semantic roles & 50–950 ramp

primary

#18586B

secondary

#A1553E

accent

#6741E6

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18586B

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

Preview Lab → · Contrast checker → · Palette generator →