#18558F#18558F

#18558F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.113 H 251.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#18558F
RGB	rgb(24, 85, 143)
HSL	hsl(209, 71%, 33%)
HSV	hsv(209, 83%, 56%)
CMYK	cmyk(83.2%, 40.6%, 0%, 43.9%)
CIE-LAB	lab(35.35, 2.98, -37.43)
CIE-LCH	lch(35.35, 37.55, 274.55°)
OKLab	oklab(44.28% -0.0363 -0.107)
OKLCH	oklch(44.28% 0.113 251.3)
XYZ	xyz(8.5812, 8.6733, 27.2031)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18558F #8F5218

analogous

#188F8D #18558F #18198F

triadic

#18558F #8F1855 #558F18

tetradic

#18558F #8D188F #8F5218 #198F18

square

#18558F #8D188F #8F5218 #198F18

split-complementary

#18558F #8F1819 #8F8D18

monochromatic

#061726 #0F365B #18558F #2174C3 #4293DF

Accessibility & contrast

On white

7.68

#18558F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#18558F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18558F

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18558F	#FFFFFF	#000000	##FFFFFF
##18558F	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395991

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#00636B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #18558f;
/* rgb */ color: rgb(24, 85, 143);
/* oklch */ color: oklch(44.3% 0.113 251.3);

Tailwind

colors: {
  custom: {
    50: '#6a84b0',
    500: '#18558f',
    950: '#000000',
  },
}

SCSS

$custom: #18558f;
$custom-light: #6a84b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18558f",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 143
  },
  "hsl": {
    "h": 209.244,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44284,
    "c": 0.11296,
    "h": 251.3
  },
  "luminance": 0.08674
}

Semantic roles & 50–950 ramp

primary

#18558F

secondary

#C08043

accent

#923AEE

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #18558F

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

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