#18403F color
The hex color #18403F is a very dark, desaturated cyan.
In the RGB color model it is made of 9.4% red, 25.1% green and 24.7% blue (24, 64, 63).
Its hue angle is 179°, with 45% saturation and 17% lightness. For print, the CMYK equivalent is 63% cyan, 0% magenta, 2% yellow and 75% black.
The closest named color is Botanical Night (#12403C), a difference of 2.1 ΔE, a small difference.
White text is the more readable choice on this background (contrast 11.39:1).
#18403F color codes
| HEX | #18403F | |
|---|---|---|
| RGB | rgb(24, 64, 63) | |
| RGB percent | rgb(9.4%, 25.1%, 24.7%) | |
| HSL | hsl(179, 45%, 17%) | |
| HSV / HSB | hsv(179, 63%, 25%) | |
| CMYK | cmyk(63%, 0%, 2%, 75%) | |
| CIE LAB | lab(24.38, -14.2, -3.64) | |
| CIE LCH | lch(24.38, 14.66, 194.36) | |
| CIE XYZ | xyz(3.107, 4.22, 5.352) | |
| Decimal | 1589311 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #18403F, based on their position on the color wheel.
Complementary
The color opposite on the color wheel (180°). Strongest contrast.
Analogous
Neighbors 30° either side. Calm, natural combinations.
Split complementary
The two colors next to the complement (150° and 210°).
Triadic
Three colors evenly spaced, 120° apart.
Tetradic (square)
Four colors 90° apart.
Shades, tints and tones
Shades (darker, mixed with black)
Tints (lighter, mixed with white)
Tones (mixed with gray)
Contrast and accessibility
| Text on #18403F | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.84:1 | Fail | Fail | Fail |
| Sample text | 11.39:1 | Pass | Pass | Pass |
| #18403F as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 11.39:1 | Pass | Pass | Pass |
| Sample text | 1.84:1 | Fail | Fail | Fail |
WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.
Color blindness simulation
How #18403F looks to people with the most common types of color vision deficiency.
#3c3d3fProtanopia
no red cones#35383fDeuteranopia
no green cones#004240Tritanopia
no blue cones#3a3a3aAchromatopsia
no color vision
CSS examples
.background { background-color: #18403f; }
.text { color: #18403f; }
.border { border: 2px solid #18403f; }
.transparent { background-color: rgb(24 64 63 / 50%); }
.gradient { background: linear-gradient(to right, #18403f, #182d40); }
Similar colors
#12403cBotanical Night#224347Emerald Forest#27454aMysterious Waters#014d4eDark Teal#133337Elite Teal#1c3d44Sunken Harbour#2f4f4fDark Slate Gray#024a43Tropical Forest
Questions
- What color is #18403F?
- #18403F is a very dark, desaturated cyan, closest to the named color Botanical Night. It belongs to the teal family of colors.
- What is the RGB value of #18403F?
- The RGB value is 24, 64, 63: 24 red, 64 green and 63 blue on a 0 to 255 scale.
- What is the complementary color of #18403F?
- The complementary color is #401819, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #18403F?
- White text. Black text has a contrast ratio of 1.84:1 and white text 11.39:1. WCAG asks for at least 4.5:1 for normal text.