#18587F#18587F

#18587F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.090 H 240.6°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#18587F
RGB	rgb(24, 88, 127)
HSL	hsl(203, 68%, 30%)
HSV	hsv(203, 81%, 50%)
CMYK	cmyk(81.1%, 30.7%, 0%, 50.2%)
CIE-LAB	lab(35.41, -5.29, -27.55)
CIE-LCH	lch(35.41, 28.06, 259.14°)
OKLab	oklab(44.04% -0.0439 -0.078)
OKLCH	oklch(44.04% 0.09 240.6)
XYZ	xyz(7.6957, 8.7050, 21.3492)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18587F #7F3F18

analogous

#187F72 #18587F #18257F

triadic

#18587F #7F1858 #587F18

tetradic

#18587F #72187F #7F3F18 #257F18

square

#18587F #72187F #7F3F18 #257F18

split-complementary

#18587F #7F1825 #7F7218

monochromatic

#05121A #0E344C #18587F #227CB2 #389CD9

Accessibility & contrast

On white

7.66

#18587F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#18587F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18587F

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18587F	#FFFFFF	#000000	##FFFFFF
##18587F	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465981

Deuteranopia (green-blind)

#384F7E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #18587f;
/* rgb */ color: rgb(24, 88, 127);
/* oklch */ color: oklch(44.0% 0.090 240.6);

Tailwind

colors: {
  custom: {
    50: '#6687a4',
    500: '#18587f',
    950: '#000000',
  },
}

SCSS

$custom: #18587f;
$custom-light: #6687a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18587f",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 127
  },
  "hsl": {
    "h": 202.718,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.44044,
    "c": 0.08953,
    "h": 240.6
  },
  "luminance": 0.08706
}

Semantic roles & 50–950 ramp

primary

#18587F

secondary

#B36B3F

accent

#7F3DEB

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #18587F

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

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