Mossy Green #638B27
Mossy Green is a medium-dark, moderately saturated green with hex code #638B27 and RGB rgb(99, 139, 39).
Aa
Black text reads best on this color (5.25:1).
About this color
#638B27 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.135 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. It is the named color Mossy Green. Black text reads best on it, at 5.25:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Mossy Green |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Colors that go with Mossy Green
Matches found by rotating Mossy Green around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Mossy Green
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Mossy Green, closest first.
Similar named colors
The eight named colors closest to Mossy Green, with their ΔE distance.
- Olive Drab #6B8E23 ΔE 0.014
- Sap Green #5C8B15 ΔE 0.015
- Moss Green #658B38 ΔE 0.015
- Swamp Green #748500 ΔE 0.025
- Fern Green #548D44 ΔE 0.027
- Dark Yellow Green #728F02 ΔE 0.027
- Khaki Green #728639 ΔE 0.033
- Swamp #698339 ΔE 0.033
More about Mossy Green
How to make Mossy Green
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 3 parts orange
- 3 parts green
- 1 part yellow
Recipe result: #688931, a difference of ΔE 0.014 from Mossy Green. That is very close: most people will not see the difference.
Codes for Mossy Green in every format
| HEX | #638B27 |
| RGB | rgb(99, 139, 39) |
| HSL | hsl(84, 56%, 35%) |
| OKLCH | oklch(58.7% 0.135 128.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #638B27 | 3.99:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #638B27 | 5.25:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #638B27 text on white | 3.99:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #638B27 text on black | 5.25:1 | AA | Lc -34.5 | Non-text elements, placeholder text |
Shades and tints of Mossy Green
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F4F7F1
oklch(97.2% 0.009 128.6)
-
Step 100
100
#E6ECE0
oklch(93.5% 0.017 128.7)
-
Step 200
200
#D2DEC7
oklch(88.5% 0.034 129.7)
-
Step 300
300
#B5C99F
oklch(81% 0.061 128.4)
-
Step 400
400
#8EAD6A
oklch(70.8% 0.098 128.9)
-
Step 500
500
#729840
oklch(63.2% 0.125 129)
-
Step 600
600 (this color)
#638B27
oklch(58.7% 0.135 128.9)
-
Step 700
700
#4A6D0A
oklch(49% 0.125 128.8)
-
Step 800
800
#3D590F
oklch(42.6% 0.103 128.8)
-
Step 900
900
#344A16
oklch(37.8% 0.081 129.2)
-
Step 950
950
#1F2B0E
oklch(27% 0.051 128.1)
Mossy Green with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #928117 | 0.068 |
| Deuteranopia (no green cones) | #8C7E30 | 0.070 |
| Tritanopia (no blue cones) | #668577 | 0.105 |
| Achromatopsia (no color) | #7F7F7F | 0.135 |
Use Mossy Green in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.