#18497D#18497D

#18497D is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.102 H 252.9°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#18497D
RGB	rgb(24, 73, 125)
HSL	hsl(211, 68%, 29%)
HSV	hsv(211, 81%, 49%)
CMYK	cmyk(80.8%, 41.6%, 0%, 51%)
CIE-LAB	lab(30.49, 3.64, -34.09)
CIE-LCH	lch(30.49, 34.29, 276.09°)
OKLab	oklab(40.14% -0.0299 -0.0974)
OKLCH	oklch(40.14% 0.102 252.9)
XYZ	xyz(6.4595, 6.4392, 20.3005)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18497D #7D4C18

analogous

#187C7D #18497D #1A187D

triadic

#18497D #7D1849 #497D18

tetradic

#18497D #7D187C #7D4C18 #187D1A

square

#18497D #7D187C #7D4C18 #187D1A

split-complementary

#18497D #7D1A18 #7C7D18

monochromatic

#050F1A #0E2B4A #18497D #2267B0 #3785D9

Accessibility & contrast

On white

9.18

#18497D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#18497D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18497D

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18497D	#FFFFFF	#000000	##FFFFFF
##18497D	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304D7F

Deuteranopia (green-blind)

#1F447C

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #18497d;
/* rgb */ color: rgb(24, 73, 125);
/* oklch */ color: oklch(40.1% 0.102 252.9);

Tailwind

colors: {
  custom: {
    50: '#667ba3',
    500: '#18497d',
    950: '#000000',
  },
}

SCSS

$custom: #18497d;
$custom-light: #667ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#18497d",
  "rgb": {
    "r": 24,
    "g": 73,
    "b": 125
  },
  "hsl": {
    "h": 210.891,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.4014,
    "c": 0.1019,
    "h": 252.9
  },
  "luminance": 0.0644
}

Semantic roles & 50–950 ramp

primary

#18497D

secondary

#B27A3F

accent

#963DEB

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #18497D

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

Preview Lab → · Contrast checker → · Palette generator →