#407639
Closest named color: Dark Olive Green (#556B2F). oklch(51.3% 0.108 141.5), rgb(64, 118, 57).
Aa
White text reads best on this color (5.42:1).
About this color
#407639 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.108 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.037 away. White text reads best on it, at 5.42:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.86:1 |
| White text | 5.42:1 |
Values
| HEX | #407639 |
| RGB | rgb(64, 118, 57) |
| HSL | hsl(113, 35%, 34%) |
| OKLCH | oklch(51.3% 0.108 141.5) |
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 #407639 | 5.42:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #407639 | 3.86:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #407639 text on white | 5.42:1 | AA | Lc 76.9 | Fine for body text |
| #407639 text on black | 3.86:1 | AA large text | Lc -24.9 | Dividers and decoration only |
Tints and shades
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 700.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CFDECD
oklch(88.5% 0.028 142)
-
Step 300
300
#AECAAA
oklch(80.9% 0.054 141.6)
-
Step 400
400
#83AE7D
oklch(70.7% 0.084 141.6)
-
Step 500
500
#639A5C
oklch(63.2% 0.107 141.6)
-
Step 600
600
#498441
oklch(55.6% 0.117 141.4)
-
Step 700
700 (this color)
#407639
oklch(51.3% 0.108 141.5)
-
Step 800
800
#305B2B
oklch(42.7% 0.09 141.7)
-
Step 900
900
#2B4B27
oklch(37.8% 0.07 141.6)
-
Step 950
950
#1A2C17
oklch(27.1% 0.045 140.9)
#407639 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) | #796D34 | 0.078 |
| Deuteranopia (no green cones) | #71683D | 0.077 |
| Tritanopia (no blue cones) | #3B7368 | 0.071 |
| Achromatopsia (no color) | #6A6A6A | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407639
#407639
oklch(51.3% 0.108 141.5)
- #83508C
#83508C
oklch(51.2% 0.109 321.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #407639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.037
- Jungle Green #048243 ΔE 0.042
- Muddy Green #657432 ΔE 0.044
- Dark Moss Green #606C38 ΔE 0.047
- Tree Green #2A7E19 ΔE 0.048
- Camo Green #526525 ΔE 0.050
- Military Green #667C3E ΔE 0.052
- Dark Grass Green #388004 ΔE 0.056
Use #407639 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.