#18405F#18405F

#18405F is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.070 H 245.0°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#18405F
RGB	rgb(24, 64, 95)
HSL	hsl(206, 60%, 23%)
HSV	hsv(206, 75%, 37%)
CMYK	cmyk(74.7%, 32.6%, 0%, 62.7%)
CIE-LAB	lab(25.82, -2.46, -22.44)
CIE-LCH	lch(25.82, 22.57, 263.75°)
OKLab	oklab(35.91% -0.0295 -0.0635)
OKLCH	oklch(35.91% 0.07 245)
XYZ	xyz(4.2749, 4.6867, 11.5036)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18405F #5F3718

analogous

#185F5A #18405F #181C5F

triadic

#18405F #5F1840 #405F18

tetradic

#18405F #5A185F #5F3718 #1C5F18

square

#18405F #5A185F #5F3718 #1C5F18

split-complementary

#18405F #5F181C #5F5A18

monochromatic

#061018 #0C1F2E #18405F #246190 #3182C1

Accessibility & contrast

On white

10.84

#18405F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#18405F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18405F

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18405F	#FFFFFF	#000000	##FFFFFF
##18405F	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324160

Deuteranopia (green-blind)

#283A5E

Tritanopia (blue-blind)

#00474B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #18405f;
/* rgb */ color: rgb(24, 64, 95);
/* oklch */ color: oklch(35.9% 0.070 245.0);

Tailwind

colors: {
  custom: {
    50: '#5f748c',
    500: '#18405f',
    950: '#000000',
  },
}

SCSS

$custom: #18405f;
$custom-light: #5f748c;
$custom-dark: #000000;

JSON

{
  "hex": "#18405f",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 95
  },
  "hsl": {
    "h": 206.197,
    "s": 59.664,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35907,
    "c": 0.07,
    "h": 245
  },
  "luminance": 0.04687
}

Semantic roles & 50–950 ramp

primary

#18405F

secondary

#95643D

accent

#8A45E3

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #18405F

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

Preview Lab → · Contrast checker → · Palette generator →