#647A5C
Closest named color: Dark Sage (#598556). oklch(55.3% 0.052 137.4), rgb(100, 122, 92).
Aa
White text reads best on this color (4.68:1).
About this color
#647A5C is a medium-dark, muted green. In OKLCH its lightness is 55%, its chroma 0.052 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.039 away. White text reads best on it, at 4.68:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #647A5C |
| RGB | rgb(100, 122, 92) |
| HSL | hsl(104, 14%, 42%) |
| OKLCH | oklch(55.3% 0.052 137.4) |
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 #647A5C | 4.68:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #647A5C | 4.48:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #647A5C text on white | 4.68:1 | AA | Lc 72.5 | Content text, not long reading |
| #647A5C text on black | 4.48:1 | AA large text | Lc -29.1 | 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
#E8EBE6
oklch(93.6% 0.007 132.4)
-
Step 200
200
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#BAC4B6
oklch(80.9% 0.022 136.6)
-
Step 400
400
#96A690
oklch(70.6% 0.036 137.1)
-
Step 500
500
#7C9174
oklch(63.2% 0.049 137.1)
-
Step 600
600 (this color)
#647A5C
oklch(55.3% 0.052 137.4)
-
Step 700
700
#54674C
oklch(49% 0.048 136.5)
-
Step 800
800
#44543F
oklch(42.6% 0.039 138.3)
-
Step 900
900
#3A4635
oklch(37.8% 0.032 136.5)
-
Step 950
950
#22291F
oklch(27.1% 0.021 136.3)
#647A5C 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) | #7C755A | 0.036 |
| Deuteranopia (no green cones) | #79735D | 0.036 |
| Tritanopia (no blue cones) | #637872 | 0.036 |
| Achromatopsia (no color) | #747474 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647A5C
#647A5C
oklch(55.3% 0.052 137.4)
- #7F6987
#7F6987
oklch(55.3% 0.053 317)
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 #647A5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.039
- Military Green #667C3E ΔE 0.042
- Grey Brown #7F7053 ΔE 0.045
- Muddy Green #657432 ΔE 0.050
- Dark Moss Green #606C38 ΔE 0.054
- Slate Green #658D6D ΔE 0.055
- Dull Brown #876E4B ΔE 0.058
- Swamp #698339 ΔE 0.059
Use #647A5C 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.