#18497A#18497A

#18497A is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 39.9% C 0.098 H 251.7°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX#18497A
RGBrgb(24, 73, 122)
HSLhsl(210, 67%, 29%)
HSVhsv(210, 80%, 48%)
CMYKcmyk(80.3%, 40.2%, 0%, 52.2%)
CIE-LABlab(30.31, 2.42, -32.51)
CIE-LCHlch(30.31, 32.60, 274.25°)
OKLaboklab(39.94% -0.0307 -0.0928)
OKLCHoklch(39.94% 0.098 251.7)
XYZxyz(6.2708, 6.3637, 19.3064)
Luminance0.0636 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#18497A #7A4918
analogous
#187A7A #18497A #18187A
triadic
#18497A #7A1849 #497A18
tetradic
#18497A #7A187A #7A4918 #187A18
square
#18497A #7A187A #7A4918 #187A18
split-complementary
#18497A #7A1818 #7A7A18
monochromatic
#050F1A #0E2A47 #18497A #2268AD #3586D7

Accessibility & contrast

On white

9.24
#18497A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.27
#18497A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18497A
9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##18497A#FFFFFF#000000##FFFFFF
##18497A1.009.242.279.24
#FFFFFF9.241.0021.001.00
#0000002.2721.001.0021.00
##FFFFFF9.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#324C7C
Deuteranopia (green-blind)
#224379
Tritanopia (blue-blind)
#00555B
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #18497a;
/* rgb */ color: rgb(24, 73, 122);
/* oklch */ color: oklch(39.9% 0.098 251.7);
Tailwind
colors: {
  custom: {
    50: '#657ba1',
    500: '#18497a',
    950: '#000000',
  },
}
SCSS
$custom: #18497a;
$custom-light: #657ba1;
$custom-dark: #000000;
JSON
{
  "hex": "#18497a",
  "rgb": {
    "r": 24,
    "g": 73,
    "b": 122
  },
  "hsl": {
    "h": 210,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.39938,
    "c": 0.09771,
    "h": 251.7
  },
  "luminance": 0.06364
}

Semantic roles & 50–950 ramp

primary
#18497A
secondary
#AF773F
accent
#943EEA
background
#F6F7F9
surface
#EBEDF2
border
#C6C8CC
text
#06090F
muted
#7A7B7E

Preview Lab

Preview with #18497A

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

Preview Lab → · Contrast checker → · Palette generator →

#18497A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva