#18404F#18404F

#18404F is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.051 H 225.9°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#18404F
RGB	rgb(24, 64, 79)
HSL	hsl(196, 53%, 20%)
HSV	hsv(196, 70%, 31%)
CMYK	cmyk(69.6%, 19%, 0%, 69%)
CIE-LAB	lab(25.03, -8.61, -13.23)
CIE-LCH	lch(25.03, 15.79, 236.93°)
OKLab	oklab(35.02% -0.0358 -0.0369)
OKLCH	oklch(35.02% 0.051 225.9)
XYZ	xyz(3.6208, 4.4251, 8.0589)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18404F #4F2718

analogous

#184F43 #18404F #18244F

triadic

#18404F #4F1840 #404F18

tetradic

#18404F #43184F #4F2718 #244F18

square

#18404F #43184F #4F2718 #244F18

split-complementary

#18404F #4F1824 #4F4318

monochromatic

#071317 #0A1A20 #18404F #26667E #358CAD

Accessibility & contrast

On white

11.14

#18404F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#18404F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18404F

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18404F	#FFFFFF	#000000	##FFFFFF
##18404F	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383F50

Deuteranopia (green-blind)

#30394F

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #18404f;
/* rgb */ color: rgb(24, 64, 79);
/* oklch */ color: oklch(35.0% 0.051 225.9);

Tailwind

colors: {
  custom: {
    50: '#5c7480',
    500: '#18404f',
    950: '#000000',
  },
}

SCSS

$custom: #18404f;
$custom-light: #5c7480;
$custom-dark: #000000;

JSON

{
  "hex": "#18404f",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 79
  },
  "hsl": {
    "h": 196.364,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.35016,
    "c": 0.05144,
    "h": 225.9
  },
  "luminance": 0.04425
}

Semantic roles & 50–950 ramp

primary

#18404F

secondary

#86513D

accent

#734BDD

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #18404F

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

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