#004740 color
The hex color #004740 is a very dark, vivid spring green.
In the RGB color model it is made of 0% red, 27.8% green and 25.1% blue (0, 71, 64).
Its hue angle is 174°, with 100% saturation and 14% lightness. For print, the CMYK equivalent is 100% cyan, 0% magenta, 10% yellow and 72% black.
The closest named color is Tropical Forest (#024A43), a difference of 0.9 ΔE, which is barely visible.
White text is the more readable choice on this background (contrast 10.63:1).
#004740 color codes
| HEX | #004740 | |
|---|---|---|
| RGB | rgb(0, 71, 64) | |
| RGB percent | rgb(0%, 27.8%, 25.1%) | |
| HSL | hsl(174, 100%, 14%) | |
| HSV / HSB | hsv(174, 100%, 28%) | |
| CMYK | cmyk(100%, 0%, 10%, 72%) | |
| CIE LAB | lab(26.38, -21.59, -1.41) | |
| CIE LCH | lch(26.38, 21.63, 183.74) | |
| CIE XYZ | xyz(3.178, 4.876, 5.623) | |
| Decimal | 18240 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #004740, 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 #004740 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.98:1 | Fail | Fail | Fail |
| Sample text | 10.63:1 | Pass | Pass | Pass |
| #004740 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 10.63:1 | Pass | Pass | Pass |
| Sample text | 1.98:1 | 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 #004740 looks to people with the most common types of color vision deficiency.
#434240Protanopia
no red cones#3a3c41Deuteranopia
no green cones#004945Tritanopia
no blue cones#3e3e3eAchromatopsia
no color vision
CSS examples
.background { background-color: #004740; }
.text { color: #004740; }
.border { border: 2px solid #004740; }
.transparent { background-color: rgb(0 71 64 / 50%); }
.gradient { background: linear-gradient(to right, #004740, #002a47); }
Similar colors
#024a43Tropical Forest#12403cBotanical Night#014d4eDark Teal#01554fCape Verde#264334Everglade#33534bHunter#125b49Evergreen#17462eZucchini
Questions
- What color is #004740?
- #004740 is a very dark, vivid spring green, closest to the named color Tropical Forest. It belongs to the teal family of colors.
- What is the RGB value of #004740?
- The RGB value is 0, 71, 64: 0 red, 71 green and 64 blue on a 0 to 255 scale.
- What is the complementary color of #004740?
- The complementary color is #470007, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #004740?
- White text. Black text has a contrast ratio of 1.98:1 and white text 10.63:1. WCAG asks for at least 4.5:1 for normal text.