#18497C#18497C

#18497C is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.100 H 252.5°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#18497C
RGB	rgb(24, 73, 124)
HSL	hsl(211, 68%, 29%)
HSV	hsv(211, 81%, 49%)
CMYK	cmyk(80.6%, 41.1%, 0%, 51.4%)
CIE-LAB	lab(30.43, 3.23, -33.57)
CIE-LCH	lch(30.43, 33.72, 275.50°)
OKLab	oklab(40.07% -0.0302 -0.0959)
OKLCH	oklch(40.07% 0.1 252.5)
XYZ	xyz(6.3960, 6.4138, 19.9658)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18497C #7C4B18

analogous

#187B7C #18497C #19187C

triadic

#18497C #7C1849 #497C18

tetradic

#18497C #7C187B #7C4B18 #187C19

square

#18497C #7C187B #7C4B18 #187C19

split-complementary

#18497C #7C1918 #7B7C18

monochromatic

#050F1A #0E2B49 #18497C #2267AF #3686D8

Accessibility & contrast

On white

9.20

#18497C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#18497C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18497C

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18497C	#FFFFFF	#000000	##FFFFFF
##18497C	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314D7E

Deuteranopia (green-blind)

#20437B

Tritanopia (blue-blind)

#00555C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #18497c;
/* rgb */ color: rgb(24, 73, 124);
/* oklch */ color: oklch(40.1% 0.100 252.5);

Tailwind

colors: {
  custom: {
    50: '#657ba2',
    500: '#18497c',
    950: '#000000',
  },
}

SCSS

$custom: #18497c;
$custom-light: #657ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#18497c",
  "rgb": {
    "r": 24,
    "g": 73,
    "b": 124
  },
  "hsl": {
    "h": 210.6,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.40072,
    "c": 0.10049,
    "h": 252.5
  },
  "luminance": 0.06415
}

Semantic roles & 50–950 ramp

primary

#18497C

secondary

#B1793F

accent

#963DEA

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06090F

muted

#7A7B7F

Preview Lab

Preview with #18497C

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

Preview Lab → · Contrast checker → · Palette generator →