#182D4A#182D4A

#182D4A is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.5% C 0.060 H 256.8°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#182D4A
RGB	rgb(24, 45, 74)
HSL	hsl(215, 51%, 19%)
HSV	hsv(215, 68%, 29%)
CMYK	cmyk(67.6%, 39.2%, 0%, 71%)
CIE-LAB	lab(18.21, 2.24, -20.51)
CIE-LCH	lch(18.21, 20.64, 276.22°)
OKLab	oklab(29.54% -0.0136 -0.0581)
OKLCH	oklch(29.54% 0.06 256.8)
XYZ	xyz(2.5507, 2.5651, 6.8379)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D4A #4A3518

analogous

#18464A #182D4A #1C184A

triadic

#182D4A #4A182D #2D4A18

tetradic

#182D4A #4A1846 #4A3518 #184A1C

square

#182D4A #4A1846 #4A3518 #184A1C

split-complementary

#182D4A #4A1C18 #464A18

monochromatic

#070E17 #09111C #182D4A #274978 #3665A6

Accessibility & contrast

On white

13.88

#182D4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182D4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D4A

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D4A	#FFFFFF	#000000	##FFFFFF
##182D4A	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212F4B

Deuteranopia (green-blind)

#1A2A49

Tritanopia (blue-blind)

#003438

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182d4a;
/* rgb */ color: rgb(24, 45, 74);
/* oklch */ color: oklch(29.5% 0.060 256.8);

Tailwind

colors: {
  custom: {
    50: '#5a657c',
    500: '#182d4a',
    950: '#000000',
  },
}

SCSS

$custom: #182d4a;
$custom-light: #5a657c;
$custom-dark: #000000;

JSON

{
  "hex": "#182d4a",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 74
  },
  "hsl": {
    "h": 214.8,
    "s": 51.02,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29541,
    "c": 0.05967,
    "h": 256.8
  },
  "luminance": 0.02565
}

Semantic roles & 50–950 ramp

primary

#182D4A

secondary

#81643D

accent

#9F4DDA

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040509

muted

#797A7B

Preview Lab

Preview with #182D4A

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

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