#18587D#18587D

#18587D is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.9% C 0.087 H 239.2°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#18587D
RGB	rgb(24, 88, 125)
HSL	hsl(202, 68%, 29%)
HSV	hsv(202, 81%, 49%)
CMYK	cmyk(80.8%, 29.6%, 0%, 51%)
CIE-LAB	lab(35.31, -6.06, -26.48)
CIE-LCH	lch(35.31, 27.17, 257.10°)
OKLab	oklab(43.93% -0.0446 -0.0749)
OKLCH	oklch(43.93% 0.087 239.2)
XYZ	xyz(7.5666, 8.6534, 20.6695)
Luminance	0.0865 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18587D #7D3D18

analogous

#187D70 #18587D #18267D

triadic

#18587D #7D1858 #587D18

tetradic

#18587D #70187D #7D3D18 #267D18

square

#18587D #70187D #7D3D18 #267D18

split-complementary

#18587D #7D1826 #7D7018

monochromatic

#05121A #0E344A #18587D #227CB0 #379DD9

Accessibility & contrast

On white

7.69

#18587D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#18587D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18587D

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18587D	#FFFFFF	#000000	##FFFFFF
##18587D	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46587F

Deuteranopia (green-blind)

#394F7C

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #18587d;
/* rgb */ color: rgb(24, 88, 125);
/* oklch */ color: oklch(43.9% 0.087 239.2);

Tailwind

colors: {
  custom: {
    50: '#6687a3',
    500: '#18587d',
    950: '#000000',
  },
}

SCSS

$custom: #18587d;
$custom-light: #6687a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18587d",
  "rgb": {
    "r": 24,
    "g": 88,
    "b": 125
  },
  "hsl": {
    "h": 201.98,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.43929,
    "c": 0.08717,
    "h": 239.2
  },
  "luminance": 0.08654
}

Semantic roles & 50–950 ramp

primary

#18587D

secondary

#B2693F

accent

#7D3DEB

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #18587D

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

Preview Lab → · Contrast checker → · Palette generator →