#18497E#18497E

#18497E is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.2% C 0.103 H 253.3°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#18497E
RGB	rgb(24, 73, 126)
HSL	hsl(211, 68%, 29%)
HSV	hsv(211, 81%, 49%)
CMYK	cmyk(81%, 42.1%, 0%, 50.6%)
CIE-LAB	lab(30.56, 4.04, -34.62)
CIE-LCH	lch(30.56, 34.85, 276.66°)
OKLab	oklab(40.21% -0.0297 -0.0989)
OKLCH	oklch(40.21% 0.103 253.3)
XYZ	xyz(6.5237, 6.4649, 20.6386)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18497E #7E4D18

analogous

#187C7E #18497E #1A187E

triadic

#18497E #7E1849 #497E18

tetradic

#18497E #7E187C #7E4D18 #187E1A

square

#18497E #7E187C #7E4D18 #187E1A

split-complementary

#18497E #7E1A18 #7C7E18

monochromatic

#050F1A #0E2B4B #18497E #2267B1 #3785D9

Accessibility & contrast

On white

9.16

#18497E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#18497E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18497E

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18497E	#FFFFFF	#000000	##FFFFFF
##18497E	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4D80

Deuteranopia (green-blind)

#1E447D

Tritanopia (blue-blind)

#00565D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #18497e;
/* rgb */ color: rgb(24, 73, 126);
/* oklch */ color: oklch(40.2% 0.103 253.3);

Tailwind

colors: {
  custom: {
    50: '#667ba4',
    500: '#18497e',
    950: '#000000',
  },
}

SCSS

$custom: #18497e;
$custom-light: #667ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#18497e",
  "rgb": {
    "r": 24,
    "g": 73,
    "b": 126
  },
  "hsl": {
    "h": 211.176,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40208,
    "c": 0.1033,
    "h": 253.3
  },
  "luminance": 0.06466
}

Semantic roles & 50–950 ramp

primary

#18497E

secondary

#B27B3F

accent

#973DEB

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #18497E

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

Preview Lab → · Contrast checker → · Palette generator →