#303B37 color
The hex color #303B37 is a dark, grayish spring green.
In the RGB color model it is made of 18.8% red, 23.1% green and 21.6% blue (48, 59, 55).
Its hue angle is 158°, with 10% saturation and 21% lightness. For print, the CMYK equivalent is 19% cyan, 0% magenta, 7% yellow and 77% black.
The closest named color is Aztec (#293432), a difference of 2.5 ΔE, a small difference.
White text is the more readable choice on this background (contrast 11.63:1).
#303B37 color codes
| HEX | #303B37 | |
|---|---|---|
| RGB | rgb(48, 59, 55) | |
| RGB percent | rgb(18.8%, 23.1%, 21.6%) | |
| HSL | hsl(158, 10%, 21%) | |
| HSV / HSB | hsv(158, 19%, 23%) | |
| CMYK | cmyk(19%, 0%, 7%, 77%) | |
| CIE LAB | lab(23.78, -5.55, 0.96) | |
| CIE LCH | lch(23.78, 5.63, 170.21) | |
| CIE XYZ | xyz(3.472, 4.032, 4.209) | |
| Decimal | 3160887 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with #303B37, 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 #303B37 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 1.81:1 | Fail | Fail | Fail |
| Sample text | 11.63:1 | Pass | Pass | Pass |
| #303B37 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 11.63:1 | Pass | Pass | Pass |
| Sample text | 1.81:1 | 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 #303B37 looks to people with the most common types of color vision deficiency.
#3a3937Protanopia
no red cones#383837Deuteranopia
no green cones#2e3b3aTritanopia
no blue cones#393939Achromatopsia
no color vision
CSS examples
.background { background-color: #303b37; }
.text { color: #303b37; }
.border { border: 2px solid #303b37; }
.transparent { background-color: rgb(48 59 55 / 50%); }
.gradient { background: linear-gradient(to right, #303b37, #30393b); }
Similar colors
#293432Aztec#2b322dTerminal Black#353935Onyx#3c463eDeep Forest#2f3434Phantom Ship#313330Oil#3b3c36Black Olive#353838Wet Concrete
Questions
- What color is #303B37?
- #303B37 is a dark, grayish spring green, closest to the named color Aztec. It belongs to the gray family of colors.
- What is the RGB value of #303B37?
- The RGB value is 48, 59, 55: 48 red, 59 green and 55 blue on a 0 to 255 scale.
- What is the complementary color of #303B37?
- The complementary color is #3B3034, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #303B37?
- White text. Black text has a contrast ratio of 1.81:1 and white text 11.63:1. WCAG asks for at least 4.5:1 for normal text.