#18344B#18344B

#18344B is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.5% C 0.054 H 245.5°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#18344B
RGB	rgb(24, 52, 75)
HSL	hsl(207, 52%, 19%)
HSV	hsv(207, 68%, 29%)
CMYK	cmyk(68%, 30.7%, 0%, 70.6%)
CIE-LAB	lab(20.67, -2.27, -17.33)
CIE-LCH	lch(20.67, 17.48, 262.55°)
OKLab	oklab(31.49% -0.0223 -0.0488)
OKLCH	oklch(31.49% 0.054 245.5)
XYZ	xyz(2.8742, 3.1579, 7.1133)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18344B #4B2F18

analogous

#184B49 #18344B #181B4B

triadic

#18344B #4B1834 #344B18

tetradic

#18344B #49184B #4B2F18 #1B4B18

square

#18344B #49184B #4B2F18 #1B4B18

split-complementary

#18344B #4B181B #4B4918

monochromatic

#071017 #09141D #18344B #275479 #3674A8

Accessibility & contrast

On white

12.87

#18344B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#18344B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18344B

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18344B	#FFFFFF	#000000	##FFFFFF
##18344B	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A354C

Deuteranopia (green-blind)

#232F4B

Tritanopia (blue-blind)

#003A3C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18344b;
/* rgb */ color: rgb(24, 52, 75);
/* oklch */ color: oklch(31.5% 0.054 245.5);

Tailwind

colors: {
  custom: {
    50: '#5b6b7d',
    500: '#18344b',
    950: '#000000',
  },
}

SCSS

$custom: #18344b;
$custom-light: #5b6b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#18344b",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 75
  },
  "hsl": {
    "h": 207.059,
    "s": 51.515,
    "l": 19.412
  },
  "oklch": {
    "l": 0.31486,
    "c": 0.05363,
    "h": 245.5
  },
  "luminance": 0.03158
}

Semantic roles & 50–950 ramp

primary

#18344B

secondary

#825C3D

accent

#8D4DDB

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #18344B

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

Preview Lab → · Contrast checker → · Palette generator →