#647D5B
Closest named color: Dark Sage (#598556). oklch(56% 0.059 137.5), rgb(100, 125, 91).
Aa
Black text reads best on this color (4.62:1).
About this color
#647D5B is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.059 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 0.030 away. Black text reads best on it, at 4.62:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #647D5B |
| RGB | rgb(100, 125, 91) |
| HSL | hsl(104, 16%, 42%) |
| OKLCH | oklch(56% 0.059 137.5) |
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 #647D5B | 4.53:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #647D5B | 4.62:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #647D5B text on white | 4.53:1 | AA | Lc 71.5 | Content text, not long reading |
| #647D5B text on black | 4.62:1 | AA | Lc -30.2 | 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
#D5DCD2
oklch(88.6% 0.015 136.1)
-
Step 300
300
#B9C5B4
oklch(80.9% 0.027 136.3)
-
Step 400
400
#94A78E
oklch(70.6% 0.042 138.2)
-
Step 500
500
#7A9272
oklch(63.2% 0.054 137.9)
-
Step 600
600 (this color)
#647D5B
oklch(56% 0.059 137.5)
-
Step 700
700
#52684A
oklch(49.1% 0.054 137.5)
-
Step 800
800
#43553D
oklch(42.7% 0.045 138)
-
Step 900
900
#394634
oklch(37.7% 0.034 137.1)
-
Step 950
950
#21291E
oklch(26.9% 0.023 137.2)
#647D5B 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) | #7F7859 | 0.040 |
| Deuteranopia (no green cones) | #7B755D | 0.040 |
| Tritanopia (no blue cones) | #637A74 | 0.041 |
| Achromatopsia (no color) | #767676 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647D5B
#647D5B
oklch(56% 0.059 137.5)
- #836A8B
#836A8B
oklch(56% 0.058 317.9)
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 #647D5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.030
- Military Green #667C3E ΔE 0.037
- Slate Green #658D6D ΔE 0.047
- Muddy Green #657432 ΔE 0.050
- Grey Brown #7F7053 ΔE 0.050
- Swamp #698339 ΔE 0.051
- Drab #828344 ΔE 0.055
- Khaki Green #728639 ΔE 0.058
Use #647D5B 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.