#18518B#18518B

#18518B is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 43.0% C 0.112 H 252.5°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#18518B
RGB	rgb(24, 81, 139)
HSL	hsl(210, 71%, 32%)
HSV	hsv(210, 83%, 55%)
CMYK	cmyk(82.7%, 41.7%, 0%, 45.5%)
CIE-LAB	lab(33.86, 3.99, -37.36)
CIE-LCH	lch(33.86, 37.58, 276.10°)
OKLab	oklab(43.05% -0.0337 -0.1069)
OKLCH	oklch(43.05% 0.112 252.5)
XYZ	xyz(7.9776, 7.9422, 25.5336)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18518B #8B5218

analogous

#188B8B #18518B #19188B

triadic

#18518B #8B1851 #518B18

tetradic

#18518B #8B188B #8B5218 #188B19

square

#18518B #8B188B #8B5218 #188B19

split-complementary

#18518B #8B1918 #8B8B18

monochromatic

#061423 #0F3357 #18518B #216FBF #3F8EDE

Accessibility & contrast

On white

8.11

#18518B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#18518B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18518B

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18518B	#FFFFFF	#000000	##FFFFFF
##18518B	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35558D

Deuteranopia (green-blind)

#214B8A

Tritanopia (blue-blind)

#005F67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #18518b;
/* rgb */ color: rgb(24, 81, 139);
/* oklch */ color: oklch(43.0% 0.112 252.5);

Tailwind

colors: {
  custom: {
    50: '#6981ad',
    500: '#18518b',
    950: '#000000',
  },
}

SCSS

$custom: #18518b;
$custom-light: #6981ad;
$custom-dark: #000000;

JSON

{
  "hex": "#18518b",
  "rgb": {
    "r": 24,
    "g": 81,
    "b": 139
  },
  "hsl": {
    "h": 210.261,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.43046,
    "c": 0.11205,
    "h": 252.5
  },
  "luminance": 0.07943
}

Semantic roles & 50–950 ramp

primary

#18518B

secondary

#BE8040

accent

#953AED

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #18518B

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

Preview Lab → · Contrast checker → · Palette generator →