#647E64
Closest named color: Dark Sage (#598556). oklch(56.5% 0.05 144.9), rgb(100, 126, 100).
Aa
Black text reads best on this color (4.71:1).
About this color
#647E64 is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.050 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.037 away. Black text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #647E64 |
| RGB | rgb(100, 126, 100) |
| HSL | hsl(120, 12%, 44%) |
| OKLCH | oklch(56.5% 0.05 144.9) |
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 #647E64 | 4.45:1 | AA large text | Lc -76.4 | Fine for body text |
| Black text on #647E64 | 4.71:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #647E64 text on white | 4.45:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #647E64 text on black | 4.71:1 | AA | Lc -30.7 | Non-text elements, placeholder text |
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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD4
oklch(88.4% 0.012 145.5)
-
Step 300
300
#B8C5B8
oklch(81% 0.023 145.4)
-
Step 400
400
#93A793
oklch(70.7% 0.036 145.2)
-
Step 500
500
#799179
oklch(63.1% 0.045 145)
-
Step 600
600 (this color)
#647E64
oklch(56.5% 0.05 144.9)
-
Step 700
700
#516851
oklch(49.2% 0.045 144.8)
-
Step 800
800
#425542
oklch(42.8% 0.039 144.9)
-
Step 900
900
#384638
oklch(37.7% 0.03 145)
-
Step 950
950
#212921
oklch(27% 0.018 145)
#647E64 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) | #7F7963 | 0.040 |
| Deuteranopia (no green cones) | #7B7665 | 0.039 |
| Tritanopia (no blue cones) | #627C77 | 0.031 |
| Achromatopsia (no color) | #777777 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647E64
#647E64
oklch(56.5% 0.05 144.9)
- #856C86
#856C86
oklch(56.4% 0.049 325)
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 #647E64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.037
- Slate Green #658D6D ΔE 0.043
- Military Green #667C3E ΔE 0.049
- Grey Brown #7F7053 ΔE 0.051
- Medium Grey #7D7F7C ΔE 0.053
- Battleship Grey #6B7C85 ΔE 0.055
- Battleship Gray #6C757D ΔE 0.056
- Steel Grey #6F828A ΔE 0.059
Use #647E64 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.