#647E39
Closest named color: Military Green (#667C3E). oklch(55.6% 0.101 126.6), rgb(100, 126, 57).
Aa
Black text reads best on this color (4.58:1).
About this color
#647E39 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.101 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 0.010 away. Black text reads best on it, at 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #647E39 |
| RGB | rgb(100, 126, 57) |
| HSL | hsl(83, 38%, 36%) |
| OKLCH | oklch(55.6% 0.101 126.6) |
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 #647E39 | 4.57:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #647E39 | 4.58:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #647E39 text on white | 4.57:1 | AA | Lc 71.7 | Content text, not long reading |
| #647E39 text on black | 4.58:1 | AA | Lc -29.9 | 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 600.
-
Step 50
50
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E7ECE2
oklch(93.7% 0.014 128.6)
-
Step 200
200
#D5DCCB
oklch(88.4% 0.024 125.2)
-
Step 300
300
#B9C6A7
oklch(80.8% 0.045 125.9)
-
Step 400
400
#95A978
oklch(70.7% 0.072 126.2)
-
Step 500
500
#7B9455
oklch(63.2% 0.092 126.6)
-
Step 600
600 (this color)
#647E39
oklch(55.6% 0.101 126.6)
-
Step 700
700
#536A2B
oklch(49.1% 0.093 126.4)
-
Step 800
800
#445725
oklch(42.8% 0.078 126.7)
-
Step 900
900
#394723
oklch(37.6% 0.059 126.5)
-
Step 950
950
#212A15
oklch(27% 0.039 127.7)
#647E39 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) | #847633 | 0.049 |
| Deuteranopia (no green cones) | #80753D | 0.049 |
| Tritanopia (no blue cones) | #67796E | 0.079 |
| Achromatopsia (no color) | #757575 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647E39
#647E39
oklch(55.6% 0.101 126.6)
- #8363A2
#8363A2
oklch(55.7% 0.101 306.7)
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 #647E39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.010
- Swamp #698339 ΔE 0.017
- Muddy Green #657432 ΔE 0.028
- Murky Green #6C7A0E ΔE 0.029
- Khaki Green #728639 ΔE 0.032
- Olive Green #677A04 ΔE 0.033
- Dark Sage #598556 ΔE 0.034
- Moss Green #658B38 ΔE 0.039
Use #647E39 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.