#647D40
Closest named color: Military Green (#667C3E). oklch(55.5% 0.091 127.4), rgb(100, 125, 64).
Aa
White text reads best on this color (4.61:1).
About this color
#647D40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.091 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Military Green (#667C3E), ΔE 0.004 away. White text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.54:1 |
| White text | 4.61:1 |
Values
| HEX | #647D40 |
| RGB | rgb(100, 125, 64) |
| HSL | hsl(85, 32%, 37%) |
| OKLCH | oklch(55.5% 0.091 127.4) |
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 #647D40 | 4.61:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #647D40 | 4.54:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #647D40 text on white | 4.61:1 | AA | Lc 72.0 | Content text, not long reading |
| #647D40 text on black | 4.54:1 | AA | Lc -29.7 | 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 600.
-
Step 50
50
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E7EBE3
oklch(93.5% 0.011 128.6)
-
Step 200
200
#D5DCCC
oklch(88.5% 0.023 126.3)
-
Step 300
300
#B9C6AA
oklch(80.9% 0.041 127.7)
-
Step 400
400
#95A97C
oklch(70.7% 0.067 127.5)
-
Step 500
500
#7B935B
oklch(63% 0.084 127.5)
-
Step 600
600 (this color)
#647D40
oklch(55.5% 0.091 127.4)
-
Step 700
700
#536A32
oklch(49.2% 0.086 127.7)
-
Step 800
800
#44562A
oklch(42.6% 0.07 127.4)
-
Step 900
900
#394726
oklch(37.6% 0.056 127.6)
-
Step 950
950
#222A17
oklch(27.1% 0.035 127.2)
#647D40 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) | #82763B | 0.046 |
| Deuteranopia (no green cones) | #7F7444 | 0.048 |
| Tritanopia (no blue cones) | #67786F | 0.073 |
| Achromatopsia (no color) | #757575 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647D40
#647D40
oklch(55.5% 0.091 127.4)
- #81649D
#81649D
oklch(55.5% 0.092 307)
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 #647D40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.004
- Swamp #698339 ΔE 0.023
- Muddy Green #657432 ΔE 0.026
- Dark Sage #598556 ΔE 0.030
- Khaki Green #728639 ΔE 0.036
- Murky Green #6C7A0E ΔE 0.037
- Olive Green #677A04 ΔE 0.040
- Moss Green #658B38 ΔE 0.045
Use #647D40 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.