#647E5B
Closest named color: Dark Sage (#598556). oklch(56.3% 0.061 137.8), rgb(100, 126, 91).
Aa
Black text reads best on this color (4.67:1).
About this color
#647E5B is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.061 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.027 away. Black text reads best on it, at 4.67:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.67:1 |
| White text | 4.48:1 |
Values
| HEX | #647E5B |
| RGB | rgb(100, 126, 91) |
| HSL | hsl(105, 16%, 43%) |
| OKLCH | oklch(56.3% 0.061 137.8) |
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 #647E5B | 4.48:1 | AA large text | Lc -76.6 | Fine for body text |
| Black text on #647E5B | 4.67:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #647E5B text on white | 4.48:1 | AA large text | Lc 71.1 | Content text, not long reading |
| #647E5B text on black | 4.67:1 | AA | Lc -30.5 | 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
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D4DCD2
oklch(88.6% 0.016 139.4)
-
Step 300
300
#B8C5B4
oklch(80.9% 0.027 138.3)
-
Step 400
400
#94A78D
oklch(70.6% 0.043 137.3)
-
Step 500
500
#799271
oklch(63.1% 0.056 138.2)
-
Step 600
600 (this color)
#647E5B
oklch(56.3% 0.061 137.8)
-
Step 700
700
#516849
oklch(49% 0.055 137.8)
-
Step 800
800
#43553C
oklch(42.7% 0.046 137.1)
-
Step 900
900
#384633
oklch(37.6% 0.036 137.6)
-
Step 950
950
#21291E
oklch(26.9% 0.023 137.2)
#647E5B 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) | #807859 | 0.042 |
| Deuteranopia (no green cones) | #7C765D | 0.041 |
| Tritanopia (no blue cones) | #637B75 | 0.043 |
| Achromatopsia (no color) | #777777 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647E5B
#647E5B
oklch(56.3% 0.061 137.8)
- #846A8D
#846A8D
oklch(56.2% 0.061 317.3)
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 #647E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.027
- Military Green #667C3E ΔE 0.036
- Slate Green #658D6D ΔE 0.044
- Swamp #698339 ΔE 0.049
- Muddy Green #657432 ΔE 0.050
- Grey Brown #7F7053 ΔE 0.052
- Drab #828344 ΔE 0.053
- Khaki Green #728639 ΔE 0.056
Use #647E5B 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.