#647C5D
Closest named color: Dark Sage (#598556). oklch(55.8% 0.055 138.7), rgb(100, 124, 93).
Aa
Black text reads best on this color (4.58:1).
About this color
#647C5D is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.055 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.034 away. Black text reads best on it, at 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #647C5D |
| RGB | rgb(100, 124, 93) |
| HSL | hsl(106, 14%, 43%) |
| OKLCH | oklch(55.8% 0.055 138.7) |
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 #647C5D | 4.58:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #647C5D | 4.58:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #647C5D text on white | 4.58:1 | AA | Lc 71.8 | Content text, not long reading |
| #647C5D text on black | 4.58:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#B9C5B6
oklch(81% 0.025 139.4)
-
Step 400
400
#95A78F
oklch(70.7% 0.04 137.9)
-
Step 500
500
#7A9174
oklch(63% 0.05 139.2)
-
Step 600
600 (this color)
#647C5D
oklch(55.8% 0.055 138.7)
-
Step 700
700
#52684C
oklch(49.1% 0.051 139)
-
Step 800
800
#43553E
oklch(42.7% 0.043 138.9)
-
Step 900
900
#394635
oklch(37.7% 0.033 138.4)
-
Step 950
950
#21291F
oklch(27% 0.021 139.4)
#647C5D 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) | #7E775B | 0.038 |
| Deuteranopia (no green cones) | #7A755F | 0.037 |
| Tritanopia (no blue cones) | #637A74 | 0.037 |
| Achromatopsia (no color) | #757575 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647C5D
#647C5D
oklch(55.8% 0.055 138.7)
- #826A89
#826A89
oklch(55.8% 0.055 318.5)
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 #647C5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.034
- Military Green #667C3E ΔE 0.040
- Grey Brown #7F7053 ΔE 0.048
- Slate Green #658D6D ΔE 0.049
- Muddy Green #657432 ΔE 0.052
- Swamp #698339 ΔE 0.056
- Dark Moss Green #606C38 ΔE 0.059
- Drab #828344 ΔE 0.059
Use #647C5D 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.