#647E68
Closest named color: Dark Sage (#598556). oklch(56.6% 0.045 149.3), rgb(100, 126, 104).
Aa
Black text reads best on this color (4.72:1).
About this color
#647E68 is a medium-dark, muted green. In OKLCH its lightness is 57%, its chroma 0.045 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.042 away. Black text reads best on it, at 4.72:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #647E68 |
| RGB | rgb(100, 126, 104) |
| HSL | hsl(129, 12%, 44%) |
| OKLCH | oklch(56.6% 0.045 149.3) |
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 #647E68 | 4.44:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #647E68 | 4.72:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #647E68 text on white | 4.44:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #647E68 text on black | 4.72:1 | AA | Lc -30.8 | 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
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D4DBD5
oklch(88.4% 0.011 149.8)
-
Step 300
300
#B8C4BA
oklch(80.8% 0.019 150.5)
-
Step 400
400
#93A796
oklch(70.8% 0.033 149.6)
-
Step 500
500
#78917C
oklch(63.1% 0.042 149.7)
-
Step 600
600 (this color)
#647E68
oklch(56.6% 0.045 149.3)
-
Step 700
700
#506854
oklch(49.2% 0.043 149.6)
-
Step 800
800
#425545
oklch(42.8% 0.035 149.4)
-
Step 900
900
#38463A
oklch(37.8% 0.027 149)
-
Step 950
950
#212922
oklch(27.1% 0.017 148.6)
#647E68 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) | #7F7967 | 0.040 |
| Deuteranopia (no green cones) | #7A7669 | 0.038 |
| Tritanopia (no blue cones) | #617D78 | 0.025 |
| Achromatopsia (no color) | #787878 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647E68
#647E68
oklch(56.6% 0.045 149.3)
- #866D83
#866D83
oklch(56.6% 0.045 330.1)
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 #647E68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.042
- Slate Green #658D6D ΔE 0.044
- Medium Grey #7D7F7C ΔE 0.049
- Battleship Grey #6B7C85 ΔE 0.049
- Battleship Gray #6C757D ΔE 0.050
- Grey Brown #7F7053 ΔE 0.052
- Steel Grey #6F828A ΔE 0.054
- Military Green #667C3E ΔE 0.055
Use #647E68 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.