#18455A#18455A

#18455A is a dark, moderate cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.060 H 232.0°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#18455A
RGB	rgb(24, 69, 90)
HSL	hsl(199, 58%, 22%)
HSV	hsv(199, 73%, 35%)
CMYK	cmyk(73.3%, 23.3%, 0%, 64.7%)
CIE-LAB	lab(27.26, -7.64, -16.96)
CIE-LCH	lch(27.26, 18.60, 245.74°)
OKLab	oklab(36.97% -0.0372 -0.0476)
OKLCH	oklch(36.97% 0.06 232)
XYZ	xyz(4.3495, 5.1881, 10.4431)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18455A #5A2D18

analogous

#185A4E #18455A #18245A

triadic

#18455A #5A1845 #455A18

tetradic

#18455A #4E185A #5A2D18 #245A18

square

#18455A #4E185A #5A2D18 #245A18

split-complementary

#18455A #5A1824 #5A4E18

monochromatic

#061318 #0B202A #18455A #256A8A #328FBB

Accessibility & contrast

On white

10.31

#18455A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#18455A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18455A

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18455A	#FFFFFF	#000000	##FFFFFF
##18455A	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B445B

Deuteranopia (green-blind)

#313E5A

Tritanopia (blue-blind)

#004B4C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #18455a;
/* rgb */ color: rgb(24, 69, 90);
/* oklch */ color: oklch(37.0% 0.060 232.0);

Tailwind

colors: {
  custom: {
    50: '#5e7888',
    500: '#18455a',
    950: '#000000',
  },
}

SCSS

$custom: #18455a;
$custom-light: #5e7888;
$custom-dark: #000000;

JSON

{
  "hex": "#18455a",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 90
  },
  "hsl": {
    "h": 199.091,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.36967,
    "c": 0.06038,
    "h": 232
  },
  "luminance": 0.05189
}

Semantic roles & 50–950 ramp

primary

#18455A

secondary

#91583D

accent

#7847E1

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05090B

muted

#797B7C

Preview Lab

Preview with #18455A

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

Preview Lab → · Contrast checker → · Palette generator →