#647F5E
Closest named color: Dark Sage (#598556). oklch(56.6% 0.059 140), rgb(100, 127, 94).
Aa
Black text reads best on this color (4.73:1).
About this color
#647F5E is a medium-dark, muted green. In OKLCH its lightness is 57%, its chroma 0.059 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.028 away. Black text reads best on it, at 4.73:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #647F5E |
| RGB | rgb(100, 127, 94) |
| HSL | hsl(109, 15%, 43%) |
| OKLCH | oklch(56.6% 0.059 140) |
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 #647F5E | 4.43:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #647F5E | 4.73:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #647F5E text on white | 4.43:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #647F5E text on black | 4.73:1 | AA | Lc -30.9 | 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
#B8C5B5
oklch(80.9% 0.026 139.8)
-
Step 400
400
#93A78F
oklch(70.6% 0.041 140.4)
-
Step 500
500
#789273
oklch(63.1% 0.054 140.6)
-
Step 600
600 (this color)
#647F5E
oklch(56.6% 0.059 140)
-
Step 700
700
#50694B
oklch(49.2% 0.055 140.4)
-
Step 800
800
#42553E
oklch(42.7% 0.044 140.2)
-
Step 900
900
#384635
oklch(37.6% 0.034 140.1)
-
Step 950
950
#21291F
oklch(27% 0.021 139.4)
#647F5E 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) | #81795C | 0.043 |
| Deuteranopia (no green cones) | #7D7760 | 0.042 |
| Tritanopia (no blue cones) | #637D76 | 0.038 |
| Achromatopsia (no color) | #787878 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647F5E
#647F5E
oklch(56.6% 0.059 140)
- #866B8C
#866B8C
oklch(56.6% 0.059 320.1)
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 #647F5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.028
- Military Green #667C3E ΔE 0.039
- Slate Green #658D6D ΔE 0.041
- Swamp #698339 ΔE 0.051
- Grey Brown #7F7053 ΔE 0.053
- Drab #828344 ΔE 0.054
- Muddy Green #657432 ΔE 0.055
- Khaki Green #728639 ΔE 0.057
Use #647F5E 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.