#647F2B
Closest named color: Swamp (#698339). oklch(55.7% 0.115 125.2), rgb(100, 127, 43).
Aa
Black text reads best on this color (4.61:1).
About this color
#647F2B is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.115 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.018 away. Black text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #647F2B |
| RGB | rgb(100, 127, 43) |
| HSL | hsl(79, 49%, 33%) |
| OKLCH | oklch(55.7% 0.115 125.2) |
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 #647F2B | 4.55:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #647F2B | 4.61:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #647F2B text on white | 4.55:1 | AA | Lc 71.5 | Content text, not long reading |
| #647F2B text on black | 4.61:1 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D4DDC8
oklch(88.5% 0.03 126)
-
Step 300
300
#B9C7A3
oklch(80.9% 0.051 124.8)
-
Step 400
400
#94AA71
oklch(70.7% 0.082 125.6)
-
Step 500
500
#7A954A
oklch(63.2% 0.107 125.6)
-
Step 600
600 (this color)
#647F2B
oklch(55.7% 0.115 125.2)
-
Step 700
700
#536B1D
oklch(49.2% 0.107 125.1)
-
Step 800
800
#44571A
oklch(42.7% 0.089 124.9)
-
Step 900
900
#39481C
oklch(37.7% 0.069 125.3)
-
Step 950
950
#212A11
oklch(26.9% 0.044 125.5)
#647F2B 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) | #867720 | 0.052 |
| Deuteranopia (no green cones) | #827631 | 0.052 |
| Tritanopia (no blue cones) | #68796E | 0.094 |
| Achromatopsia (no color) | #767676 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647F2B
#647F2B
oklch(55.7% 0.115 125.2)
- #8461A9
#8461A9
oklch(55.8% 0.114 305.4)
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 #647F2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.018
- Murky Green #6C7A0E ΔE 0.019
- Olive Green #677A04 ΔE 0.021
- Military Green #667C3E ΔE 0.024
- Khaki Green #728639 ΔE 0.032
- Moss Green #658B38 ΔE 0.034
- Muddy Green #657432 ΔE 0.035
- Swamp Green #748500 ΔE 0.036
Use #647F2B 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.