#18404E#18404E

#18404E is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.051 H 224.2°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#18404E
RGB	rgb(24, 64, 78)
HSL	hsl(196, 53%, 20%)
HSV	hsv(196, 69%, 31%)
CMYK	cmyk(69.2%, 17.9%, 0%, 69.4%)
CIE-LAB	lab(24.99, -8.98, -12.64)
CIE-LCH	lch(24.99, 15.51, 234.60°)
OKLab	oklab(34.97% -0.0363 -0.0352)
OKLCH	oklch(34.97% 0.051 224.2)
XYZ	xyz(3.5847, 4.4107, 7.8687)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18404E #4E2618

analogous

#184E41 #18404E #18254E

triadic

#18404E #4E1840 #404E18

tetradic

#18404E #41184E #4E2618 #254E18

square

#18404E #41184E #4E2618 #254E18

split-complementary

#18404E #4E1825 #4E4118

monochromatic

#071317 #0A1A1F #18404E #26667D #358DAC

Accessibility & contrast

On white

11.16

#18404E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#18404E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18404E

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18404E	#FFFFFF	#000000	##FFFFFF
##18404E	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4F

Deuteranopia (green-blind)

#30394E

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #18404e;
/* rgb */ color: rgb(24, 64, 78);
/* oklch */ color: oklch(35.0% 0.051 224.2);

Tailwind

colors: {
  custom: {
    50: '#5c747f',
    500: '#18404e',
    950: '#000000',
  },
}

SCSS

$custom: #18404e;
$custom-light: #5c747f;
$custom-dark: #000000;

JSON

{
  "hex": "#18404e",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 78
  },
  "hsl": {
    "h": 195.556,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.34965,
    "c": 0.05058,
    "h": 224.2
  },
  "luminance": 0.04411
}

Semantic roles & 50–950 ramp

primary

#18404E

secondary

#85503D

accent

#714BDC

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #18404E

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

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