#647C63
Closest named color: Dark Sage (#598556). oklch(56% 0.047 143.9), rgb(100, 124, 99).
Aa
Black text reads best on this color (4.60:1).
About this color
#647C63 is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.047 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.040 away. Black text reads best on it, at 4.60:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #647C63 |
| RGB | rgb(100, 124, 99) |
| HSL | hsl(118, 11%, 44%) |
| OKLCH | oklch(56% 0.047 143.9) |
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 #647C63 | 4.56:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #647C63 | 4.60:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #647C63 text on white | 4.56:1 | AA | Lc 71.7 | Content text, not long reading |
| #647C63 text on black | 4.60:1 | AA | Lc -30.0 | 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
#D5DBD4
oklch(88.5% 0.011 141.3)
-
Step 300
300
#B9C4B8
oklch(80.8% 0.021 143)
-
Step 400
400
#94A693
oklch(70.6% 0.034 143.8)
-
Step 500
500
#7A9179
oklch(63.2% 0.044 143.9)
-
Step 600
600 (this color)
#647C63
oklch(56% 0.047 143.9)
-
Step 700
700
#526751
oklch(49% 0.043 143.7)
-
Step 800
800
#435442
oklch(42.6% 0.036 143.5)
-
Step 900
900
#394638
oklch(37.8% 0.029 143.1)
-
Step 950
950
#212921
oklch(27% 0.018 145)
#647C63 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) | #7D7762 | 0.037 |
| Deuteranopia (no green cones) | #797564 | 0.035 |
| Tritanopia (no blue cones) | #627A75 | 0.030 |
| Achromatopsia (no color) | #767676 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647C63
#647C63
oklch(56% 0.047 143.9)
- #836B84
#836B84
oklch(56% 0.048 324.9)
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 #647C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.040
- Grey Brown #7F7053 ΔE 0.048
- Slate Green #658D6D ΔE 0.049
- Military Green #667C3E ΔE 0.049
- Battleship Gray #6C757D ΔE 0.053
- Medium Grey #7D7F7C ΔE 0.054
- Battleship Grey #6B7C85 ΔE 0.054
- Muddy Green #657432 ΔE 0.060
Use #647C63 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.