#18304A#18304A

#18304A is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.3% C 0.056 H 251.8°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#18304A
RGB	rgb(24, 48, 74)
HSL	hsl(211, 51%, 19%)
HSV	hsv(211, 68%, 29%)
CMYK	cmyk(67.6%, 35.1%, 0%, 71%)
CIE-LAB	lab(19.23, 0.11, -18.90)
CIE-LCH	lch(19.23, 18.90, 270.33°)
OKLab	oklab(30.34% -0.0175 -0.0534)
OKLCH	oklch(30.34% 0.056 251.8)
XYZ	xyz(2.6692, 2.8023, 6.8775)
Luminance	0.0280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18304A #4A3218

analogous

#18494A #18304A #19184A

triadic

#18304A #4A1830 #304A18

tetradic

#18304A #4A1849 #4A3218 #184A19

square

#18304A #4A1849 #4A3218 #184A19

split-complementary

#18304A #4A1918 #494A18

monochromatic

#070F17 #09121C #18304A #274E78 #366CA6

Accessibility & contrast

On white

13.46

#18304A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#18304A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18304A

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18304A	#FFFFFF	#000000	##FFFFFF
##18304A	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25314B

Deuteranopia (green-blind)

#1E2C49

Tritanopia (blue-blind)

#003639

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #18304a;
/* rgb */ color: rgb(24, 48, 74);
/* oklch */ color: oklch(30.3% 0.056 251.8);

Tailwind

colors: {
  custom: {
    50: '#5a687c',
    500: '#18304a',
    950: '#000000',
  },
}

SCSS

$custom: #18304a;
$custom-light: #5a687c;
$custom-dark: #000000;

JSON

{
  "hex": "#18304a",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 211.2,
    "s": 51.02,
    "l": 19.216
  },
  "oklch": {
    "l": 0.30342,
    "c": 0.05617,
    "h": 251.8
  },
  "luminance": 0.02803
}

Semantic roles & 50–950 ramp

primary

#18304A

secondary

#81603D

accent

#974DDA

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #18304A

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

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