#182F4A#182F4A

#182F4A is a dark, muted cyan. Relative luminance 0.027; OKLCH L 30.1% C 0.057 H 253.6°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#182F4A
RGB	rgb(24, 47, 74)
HSL	hsl(212, 51%, 19%)
HSV	hsv(212, 68%, 29%)
CMYK	cmyk(67.6%, 36.5%, 0%, 71%)
CIE-LAB	lab(18.89, 0.81, -19.44)
CIE-LCH	lch(18.89, 19.46, 272.40°)
OKLab	oklab(30.07% -0.0162 -0.0549)
OKLCH	oklch(30.07% 0.057 253.6)
XYZ	xyz(2.6288, 2.7214, 6.8640)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F4A #4A3318

analogous

#18484A #182F4A #1A184A

triadic

#182F4A #4A182F #2F4A18

tetradic

#182F4A #4A1848 #4A3318 #184A1A

square

#182F4A #4A1848 #4A3318 #184A1A

split-complementary

#182F4A #4A1A18 #484A18

monochromatic

#070F17 #09121C #182F4A #274C78 #366AA6

Accessibility & contrast

On white

13.60

#182F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#182F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F4A

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F4A	#FFFFFF	#000000	##FFFFFF
##182F4A	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24314B

Deuteranopia (green-blind)

#1D2C49

Tritanopia (blue-blind)

#003539

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182f4a;
/* rgb */ color: rgb(24, 47, 74);
/* oklch */ color: oklch(30.1% 0.057 253.6);

Tailwind

colors: {
  custom: {
    50: '#5a677c',
    500: '#182f4a',
    950: '#000000',
  },
}

SCSS

$custom: #182f4a;
$custom-light: #5a677c;
$custom-dark: #000000;

JSON

{
  "hex": "#182f4a",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 74
  },
  "hsl": {
    "h": 212.4,
    "s": 51.02,
    "l": 19.216
  },
  "oklch": {
    "l": 0.30073,
    "c": 0.05728,
    "h": 253.6
  },
  "luminance": 0.02722
}

Semantic roles & 50–950 ramp

primary

#182F4A

secondary

#81623D

accent

#9A4DDA

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #182F4A

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

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